when i am being good, i can do a weekly shop for 4 for £40
Lidl - half price fruit and veg is a life saver, and their washing powder and cleaning stuff is excellent too. good for fruit juices and tinned toms, tuna, fish
meal planning helps
eg like charliecat we do roast chicken for dinner with potatos & veg, left overs for stirfry, carcass for soup! so 3 days meals for the price of a chicken and some veg!
tinned toms reduced with some basil, garlic and olive oil makes lovely pasta sauce,or thinned down with some stock, makes soup
leek & potato soup is very cheap to make
pasta is fab with all sorts of sauces or just grated cheese
ommlettes, frittatas and other egg based meals
unless you want meat every day, it is doable!