I found 2 cool places to order foods (and some household items) at reduced prices:
The stock available is updated daily and some weeks have more bargains than others but there are usually some great offers. The prices are cheap but with AprovedFood.co.uk there is a minimum order of £15. There is also about £5 delivery charge although this is wavered for first time buyers who spend £30 or more. I am not sure the exact terms and conditions for FoodBargains.co.uk yet.
They specialise in selling out-of-date and short dated stock, the dates are put on the description of each product. They cannot refund you because of the date of a product. How out of date each product is varies so it is worth checking for each item.
Some items offer massive savings whilst others are only reduced slightly.
Overall savings can be made and it is definitely worth a try if you are based in the UK. They also offer an affiliate programme where you are credited with introducing them to your friends etc.