Bargain pasta, homepride sauce and bung in some brocolli/cauli and grate cheese on top. Tasty, easy and cheap.
Homemade coleslaw: shredded white cabbage, grated carrot, 1/2 finely sliced onion, tiny bit red cabbage - add mayo and lemon juice.
Pasta salad- great for hungry teens: bag of bargain pasta, bunch spring onions chopped (quarter onion if cheaper), smoked mackerel shredded. Combine with juice of a lemon and mayo.
The rest of the red cabbage: shredded it, add a cpl chopped apples, handful raisin, dsp red wine vinegar, salt, pepper, ground cinnamon or cloves. Yummy with a cheap braise.
Frozen veg, frozen strudel, tins of custard are your friends.
I cook 2/3 times a year for a homeless charity. Every year on Xmas Eve (4ish). I buy a couple of 12lb turkeys for a tenner and bung in freezer. Not sure this year will have such rich pickings but a turkey thigh joint is as cheap as chips and does a v nice roast for three. Also 8 chicken thighs are about £3. Should do two meals for 3. Sprinkle with oil, garlic, salt pepper and lemon juice. Bake for 40 mins. Yummy with aforementioned slaw and cous cous.