Monday Deal Stacking: The Food Delivery Hack That Saves Me Serious Money

Why Monday Is the Best Day to Shop for Groceries on Food Delivery Apps

Monday is well known as most people's least-liked day of the week. I'm no fan either, as I'm back to work after the weekend and normally feeling a tad down, but there is one genuinely good thing about a Monday: it's one of the best days to save money on the food you need for the week! I've actually stopped buying many fruit and vegetable items on my weekend shop because I know I'll likely save money by hanging on and waiting for the food delivery app Monday discount deals, as I worked out that I could get my fruit and veg cheaper on a Monday through food delivery apps than I could at my local supermarket, and the savings were too good to ignore. What started as an experiment with Just Eat's 60% off fruit and veg promotion has now become part of my food budget, and I've layered in loyalty card discounts, cashback apps, and gift card purchases to make the savings even better. The food delivery apps push aggressive Monday discounts because Monday is one of the quietest days of the week for takeaway orders, and they'd rather have a busy Monday with smaller margins than an empty one. Understanding how these savings work and knowing when to enhance them is how you make significant savings on groceries.

Why Monday Is the Best Day to Shop for Groceries on Food Delivery Apps

Mondays are slower for food delivery services, since most people aren't ordering restaurant food on Monday nights. Friday and Saturday are peak takeaway times, and Sunday evening is busy as people prep for the week, but Monday is relatively quiet, and I know this from having worked as a food delivery driver in the past.

In response, Just Eat, Deliveroo, and Uber Eats offer significant grocery discounts on a Monday to drive sales and orders and keep their drivers busy, which they want, as they are paid for each order they deliver.

The discounts are substantial. Just Eat consistently offers 60% off fruit and vegetables every Monday, Deliveroo offers 50% off fridge fillers and essentials, and Uber Eats offers 50% off selected groceries. These deals run weekly, though the specific products included can shift.

Even after you pay service fees and bag fees, the final price almost always beats what you'd pay at your local supermarket, and this is true even if you use a supermarket loyalty card like Nectar or Clubcard.

The reason this works is simple. The supermarket uses loyalty cards as a retention tool, offering discounts of 5% to 20% on selected items, while food delivery apps use Monday discounts to drive traffic, so they're willing to cut much deeper because they're trying to change consumer behaviour and prove that Monday is worth ordering on.

Wednesday is worth knowing about too, as Just Eat runs a 50% off grocery essentials deal on Wednesdays, which can be just as valuable as Monday. If you've run out of essentials mid-week, Wednesday becomes a strategic option rather than waiting until the following Monday, or having to go to the supermarket, which, for some people, such as those without transport, or perhaps may be unwell, is a lifeline. I paid £39 for £60 worth of groceries this very week, buying from Just Eat's Wednesday deals selection, and even after service and bag charges, it still worked out cheaper than buying those products directly at the supermarket, plus it was easier too, as it was with me less than 30 minutes after placing my order!

My Wednesday grocery savings

What Each App Offers and How the Discounts Work

Just Eat: 60% Off Fruit and Vegetables

Just Eat's Monday fruit-and-veg discount is the most generous of the three apps. The 60% saving is hard to beat, and the variety at major supermarkets (both main stores and smaller convenience-style stores) like Co-op, Asda, Sainsbury's, Waitrose, and Tesco is usually strong enough to cover most of your weekly fruit and vegetable needs.

The discount applies to selected fruit and vegetable products, which often change every week, which is handy for a more varied selection of ingredients to cook with. Some items may have quantity restrictions (often 2), but for more mainstream items, you can often order multiple units without hitting any ordering limits. If you need several bunches of bananas for a big family meal, you can often grab them.

Here's the crucial bit, though: you only buy items you actually use. If the 60% off deal is on items you don't want or couldn't use, don't buy them just because they're cheap. Buying something just because it's on a massive discount doesn't make financial sense if it's not something you'll actually use. That's not being money savvy; that's just spending money unnecessarily!

The whole point of deal stacking is to save money on things you're going to buy anyway, not to fill your basket with bargains you won't eat. If the 60% off deal is on items you don't want, skip those and look for something else in the promotion, or shop at a different retailer where the discounted items match what you actually need.

The discount applies to the supermarket's normal retail price, not a reduced price. So if you see an item already on sale at the supermarket for £1.50, the 60% off applies to the full shelf price (say £2), not the sale price.

Deliveroo: 50% Off Fridge Fillers and Essentials

Deliveroo's fridge fillers and essentials discount is broader than Just Eat's fruit-and-veg offer. You'll find dairy products, ready-prepared meals, meat, eggs, and other staples included. The 50% off still applies to eligible items, but the selection tends to vary more week to week.

The important thing to understand is that not everything in the supermarket section is eligible for the 50% discount. You need to look for the red promotion badge next to individual products. You might find eggs, chicken breasts, yoghurt, and pre-prepared pasta meals all on 50% off, but other products like branded spreads, premium own-label items, or speciality products won't have the discount applied.

Uber Eats: 50% Off Selected Groceries

Uber Eats runs a 50% off selected groceries offer, though it tends to vary week to week. Sometimes the selection is fantastic; other weeks, the participating products are patchy, and it's not worth placing an order. But thats the same for all apps: if the deals aren't what you want, don't buy them.

The deal selection depends on what the retailers are promoting, and so each shop will likely have something different from the others. This is why you check all three apps on a Monday and pick whichever has the best selection for what you actually need. One week, Just Eat might have incredible fruit and veg, so you'll use that. Another week, Deliveroo might have a fantastic meat and dairy selection, so you might go with that, or place more than one order to maximise the deals you get!

Understanding Deal Stacking and Why It Works

Deal stacking is the practice of combining multiple independent discounts and cashback offers on a single purchase, and it works because these discounts are applied at different points in the ordering process. They're technically independent, so they can layer on top of each other.

I'm a big cashback fan, I'll try and grab cashback on every purchase I make, and that includes these Monday deals!

I'll use a cashback gift card app like JamDoughnut to pay for the shop, having already clicked through to the food delivery app via. At a traditional cashback site first, in the hope I might be able to deal-stack cashback on the order! This is the way I do it:

1. Click through to your chosen food delivery service via a traditional style cashback service like TopCashback, Quidco, Rakuten, or a premium subscription service like Complete Savings.

2. Add the items you want to buy to the cart (Normally, I only buy the promoted products unless I need some other top-up products), then when I need to pay, I'll buy a gift card for the exact amount I need to pay, via a cashback service like JamDoughnut (and receive cashback on that purchase), and I use that to pay.

This means I've got the special deal prices, already received instant cashback from my Gift voucher purchase, and hopefully I'll also earn cashback from the traditional cashback service, so that's three lots of savings on one order! In theory, gift card cashback shouldn't stack with traditional cashback purchases, it states in the T&C's for most cashback services, but I've found it often does, so I'm willing to take the risk, and give it a try; if it does fab, if it doesn't, at least I've earned some cashback, so Im still winning!

Co-op Membership Offers Stack on Top of the App Discount

If you're shopping through Co-op on any of the food delivery apps, you can link your Co-op membership card to your account, as most food delivery apps now support this. Just Eat, Deliveroo, and Uber Eats all have a section in your account settings where you can add your Co-op membership number.

Here's how the stacking works: you link your Co-op membership, and the app now shows you which products have Co-op member prices or special member-only offers.

Separately, every Monday, Co-op members can choose two deals from a weekly list and apply them to their account, which are often discounts on specific products or categories like fruit and veg.

The crucial thing is that these Co-op membership deals stack on top of the app's main promotion, so if Just Eat is running 60% off fruit and veg and Co-op's weekly member deal includes 50p off fruit and vegetables, both discounts apply to the same items.

Let me walk through a real example: the other Monday, the Co-op member deals included 50p off fruit and vegetables, and as I was already going to be buying from Co-op (who I find have the best delivery app deals), I selected one of my two Co-op discount choices as the 50p off fruit and veg option. I then went to Just Eat and placed my order, and that 50p also came off my bill as a Co-op membership reward, saving me even more money!

Here's the step-by-step process for setting this up.

1. First, open the food delivery app and go to your account settings, then look for a loyalty card or membership section and enter your Co-op membership number. You'll find this on your physical Co-op card or in the Co-op app. Once you've entered it, the app starts showing you which items have member prices or offers available.

   
   

2. Second, log in to your Co-op account separately (on the Co-op website or app) and go to the section showing your weekly member offers, where every Monday you'll see a list of offers, and you pick which two deals you want to activate that week. The list changes weekly, so you need to look at what's available and choose strategically.

   
   

3. Third, open the food delivery app, add the items to your basket, and the app automatically calculates both discounts and shows you the final price.

   
   

4. Fourth, proceed to checkout and pay using the gift card.
   

Timing Matters!

The timing matters here: you want to pick your two Co-op member deals before you place your order. This way, you can see which products are on offer and build your basket around them, whereas if you order first and pick your deals afterwards, you might miss out on discounts that would have applied.

Some weeks, the Co-op member deals are spot-on with the deals stack, while other weeks you might not get lucky. Always check!

Cashback Apps Give You Money Back on Purchases

UK cashback services let you claim a percentage of your purchase back as cash, and the main ones I use are TopCashback, Quidco, Rakuten, and Complete Savings.

Here's how the process works: you go to the cashback service website or open their app, you search for the food delivery service you want to use (Just Eat, Deliveroo, etc.), you click a button to "Get cashback" which takes you to that service's website while the cashback app tracks your journey, you then place your order as normal and pay for it, and a few days later the cashback appears in your cashback account.

The crucial bit is clicking through the cashback app first; if you go directly to Just Eat without going through it, the order won't track, and you won't get any cashback. The cashback app needs to see you leaving their site and landing on Just Eat's site, and that tracking is what triggers the cashback.

TopCashback, Quidco, and Rakuten are free to join, and they offer cashback based on the retailer and the promotions that are live. The percentage varies week to week depending on which deals are active. Also if you are new to these cashback service, look for referral first time user bonuses, which start from £3 for JamDoughnut, and can be as high as £25 for services like Rakuten, and your Monday purchase may well trigger these! You'll find cashback referral links if you want one, in my main UK cashback review page.

Complete Savings is different: it's a paid subscription service at £18 per month, but you can claim a £18 bonus each month, which I always do, so you don't actually pay anything. In exchange, you get a minimum of 10% cashback on purchases made at retailers signed up to their cashback service, including food delivery apps.

I use Complete Savings for food delivery because the 10% cashback is pretty impressive, but I also keep TopCashback and other cashback apps in mind, since sometimes other sites run special promotions with specific retailers that offer even better cashback options. It's worth checking all of them quickly before you order to find the one that gives you the best rate on the day.

Buy Gift Cards for Your Exact Order Amount

You can buy gift cards for Just Eat, Deliveroo, and Uber Eats from apps like JamDoughnut. When you buy the gift card through JamDoughnut, you get cashback on your purchase.

Here's how it works: you buy a gift card for the exact amount you need to pay for your order, right at the time of purchase. You're paying the full price of the gift card, but you receive cashback on that purchase, which is credited to your JamDoughnut account as points. One point equals one penny, so once you accumulate 1,000 points (£10), you can cash out.

You can cash out your JamDoughnut cashback in two ways: directly to your bank account, or as a gift card for a supermarket or another retailer. I tend to cash out to a supermarket gift card to put towards my next food shop or I cash out to a food delivery app gift card and use it to pay for my Monday order; either way its giving me the option to use that cashback to purchase things such as food, that won't actually cost me anything, so that's a fab way to feed the family on the cheap!

Use Free Delivery Passes to Cut Costs

Delivery costs eat into your savings, and if you can eliminate or reduce them, the deals become even better.

Just Eat Plus gives you free delivery on orders over £15, and I managed to get six months free through a promotional offer from O2 Priority, which is fab, so always check all your perks/loyalty apps for all your service providers, such as your phone, energy providers etc, as these types of deals are often made available to users and they can save you a good few quid! If you've got the free delivery option, use it; you'll still pay a service fee and a bag fee, but they're lower than a delivery fee would be. You have 6 months free, which means that for over 6 months, those delivery fees don't apply, giving you significant savings.

Once your six months expire, Just Eat Plus costs £4.99 per month, and at that point you need to decide if it's worth paying for regular orders. For someone ordering from Just Eat every week, it probably is, whereas for someone ordering once a month, it probably isn't.

If you have an Amazon Prime account, you can redeem an offer to get 12 months of free Deliveroo Plus, which normally costs £40 per year. Free delivery applies to restaurant orders over £25 and shop orders over £15 (the grocery bit), and you often get extra discounts with this membership too. The key thing is that it doesn't auto-renew: after 12 months, it expires, and you're not automatically charged, so you get the full year free and can let it lapse without worrying about surprise charges.

If you've got Amazon Prime, this is genuinely free money, as you're already paying for Prime, and you might as well use the free Deliveroo Plus that comes with it.

Practical Checklist: What to Do Before You Order

Before you place an order, do these things.

Only buy things you'll actually use.  This is the golden rule of deal stacking. A 60% discount is amazing, but only if you're buying items you genuinely need or use regularly. If the deal includes products you don't want, don't buy them just because they're cheap. That defeats the entire point of saving money. Either swap those items for something else on the promotion that you do want, or shop at a different retailer where the discounted items match what you actually need. Spending money on cheap things you won't use isn't savings, it's just spending.

Check what discounts are live on Monday.  On Monday morning, check the apps to see what deals are available that day. The discounts can vary, and you're looking for items that match what you actually need. Check for other food delivery app discounts Check for additional in-app discounts. The food delivery platforms regularly push out money-off coupons, particularly towards the end of the month or around key spending periods such as school half-term, Easter, Christmas, and bank holidays. These tend to appear directly in the app or via email and social channels, and they’re easy to miss if you’re not actively looking for them.

These offers can be substantial. I’ve had multiple £ 10-off £20 or £25 spend vouchers, and crucially, they often apply to grocery orders as well as restaurant orders. For example, over Easter, I combined a £10 off £25 voucher with a 60% off fruit and veg deal on Just Eat, on top of cashback and loyalty discounts. That deal combination took a significant chunk off the total and turned an already good deal into something pretty amazing!

It’s not guaranteed every time, but it happens often enough that it’s worth checking before placing any order. If there’s a simple habit to build here, it’s this: open the app, check for vouchers, then build your basket. That small step can easily unlock an extra layer of savings on top of everything else.

Add your loyalty card.  If you're shopping through Co-op, make sure you've linked your membership before you order and pick your two weekly deals first, as this takes 30 seconds and can add savings to your order.

Click through your cashback app.  Don't go directly to the food delivery app; always click through via TopCashback, Quidco, Rakuten, or Complete Savings, as this ensures the order tracks properly. If you go directly, you lose that cashback entirely.

Check the total before paying.  Once you've added all your products and can see the service charge and bag fee, check what you're actually paying. Sometimes the total price still looks high even after the discount, and it's better to spot it before checkout and adjust your basket, to maximise any free delivery offers you might be close to hitting by adding something else, and removing that delivery charge, or check to see what the same order might cost you buying elsewhere, and if the deal is as good as it first looked, dont buy it!

Buy a gift card for the exact amount of your order.  If you want to earn cashback on a gift card, buy it for the exact amount you need to pay for your order, right at the time of purchase, and use it straight away. You're still paying full price, but you're earning cashback on the purchase, and that cashback will add up!

Check which items actually have the discount applied.  Not everything in the store will be eligible for the promotion. There will normally be a section on the food apps dedicated to the Monday promotion; use it to browse what's on offer.

So Monday isn't so bad after all!

Monday deal stacking turns food delivery apps into a money-saving way to save money on groceries. By understanding how the 60% discount works, adding loyalty card benefits, using cashback apps, and buying gift cards for your exact order amount, you can make significant savings compared to buying the same items at a supermarket.

The key is only buying items you actually use and understanding which deals are available on any given Monday. If the items on discount don't match what you need, skip them and either wait for another week or shop at a different retailer.

Start with just the app discount and see how much you save. If you like the results, add a cashback app. Then add the loyalty card. Then the gift card. Build it gradually, and you'll quickly develop a system that works for your shopping needs.

FAQ

What if I don't have an Amazon Prime account for Deliveroo Plus?

Deliveroo Plus normally costs £4.99 per month. If you use Deliveroo regularly, it pays for itself quickly with free delivery on orders over £15. If you only order occasionally, it might not be worth the subscription cost.

Can I use multiple cashback apps on the same order?

No. You need to click through one cashback app to trigger tracking. If you click through one app and then switch to another, only the first one will track the order.

What happens if the promotion runs out of stock?

Food delivery apps don't usually run out of stock on their main promotions like the 60% off. Individual products might be unavailable, but the promotion itself stays active. If a specific item is out of stock, just select a different one.

Do I need to use Complete Savings or can I use a free cashback app?

You can use any cashback app. Complete Savings is worth it because you don't actually pay anything (£18 monthly fee offset by £18 bonus), and the cashback returns are significant. But TopCashback, Quidco, and Rakuten are all legitimate options if you prefer not to pay anything upfront.

How long do I have to wait for cashback to appear?

Cashback usually appears as pending after a few days. It then becomes confirmed after another few days, at which point you can request a payout.

What if my order doesn't track through the cashback app?

Contact the cashback app's customer service and report the missing order. They'll ask for your order confirmation email and can manually add the cashback.

Can I stack multiple food delivery apps in one shop?

No. Each order is tied to one app. If you want to use multiple apps, you need to place separate orders through each one.

What's the minimum I can cash out from JamDoughnut?

You need 1,000 points (which equals £10) before you can cash out. You can cash out to your bank account or as a supermarket or retailer gift card.