I like to stock up on chicken breasts. Wrap one or two in foil at a time and freeze them for later. They can be easily defrosted in the microwave, and the foil can be easily removed by running water over it for only a few seconds. Put the chicken in a casserole dish with some rice (equal parts water) and add a can of cream of chicken soup (don't add extra water) or cream of mushroom, I like cream of celery. Mix it all up and put the chicken on top of the rice mixture, cover the dish with foil and bake at 350 for 45mins to an hour. I also keep frozen veggies in the freezer that I can just throw the whole bag in the microwave and it steams right in the bag. Quick and easy dinner. It's healthy, too. If you're more of a junk food junkie, you can get a box of 16-20 corndogs for 5 or 6 dollars and they only take one minute to heat in the microwave. Sandwiches are good, especially if you toast the bread, melt the cheese, or add some of that pre-cooked bacon, you can have a hot sandwich in five minutes. Just be sure to add any condiments last. Hot mayo or mustard, yuck! lol If you like chili, you can get a can of beanless chili for a dollar, a can of beans for 65 cents, a can of diced tomatoes for a dollar, mix them all up, put a single portion in the microwave, add cheese, save the rest, you have delicious chili for two days! You also won't use a lot of dishes when you make these things.
I've been cooking this way for years and years. It's cheap and tasty!