Pea and bacon pasta - fry bacon bits while pasta and peas cook together. Mix tub of cream cheese into bacon pan, thin with a bit of cooking water, drain peas and pasta then mix with bacon/cream sauce. Yummy.
Jacket potatoes - to save energy use smaller potatoes and cook extra as they freeze well. Top with cheese (pop back in warm turned-off oven to melt if you like), or beans, or beans and cheese, or cottage cheese, or tuna and mayo.
(I top spare halves with cheese, fluffing the centre first, then freeze. Great for quick lunches - leave out to defrost if you remember then microwave for 2 minutes.)
Quesedillas - like fajitas but less hassle! Fry onions, peppers etc, with mince or chicken strips and a bit of spice/ squeeze of tomato paste (chilli powder, paprika and cumin are your basic fajita spice mix).
Drizzle frying pan with a little oil, pop in a wrap and add the filling with grated cheese on top, pop another wrap on top and let cheese melt then flip over to crisp the other side up. Cut into pieces like a pizza.
Shakshuka -fry onions, peppers then add paprika and cumin, chilli if you like it, next add a tin of chopped or plum tomatoes. Simmer for a few minutes to soften everything up together then make little wheels to drop an egg into, cover and cook for a few more minutes.
Sweetcorn fritters - my lot love these as a hearty snack or with some chicken nuggets and salad. Mix a tin of sweetcorn with an egg and a TBSP of flour (any kind), add a little milk if necessary. Drop spoonfuls into a lightly oiled pan and turn when brown.
Nachos - layer a deep baking tray with value tortilla crisps, diced tomatoes, red onion, avocado, grated cheese and jalapenos if you like them. Bake or grill till warmed and cheese is melty.
Mushroom risotto - the trick is to deglaze the pan with a splash of white wine after frying the mushrooms and garlic, letting it evaporate before adding the rice and liquid.