When I can't be bothered I do Diet coke chicken with Cous cous. I used cook diced frozen chicken and frozen diced onions. Throw in a can of DC and the passata and spices, bring it to boil then turn it to low, forget about it return 20 mins later put the cous cous in a tub, pour on water put lid on. Leave for 5 mins. Serve. Minimal effort!
The other thing I do is mccain rustics - 1syn per 100g. Usually have 2-3syns worth. Shove in oven for 20 mins. Cook a egg and warm some beans. Easy x