I mean the one you do when you want something easy to do, but not when you're tired at the point you microwave a frozen-meal, or just cut down a piece of cheese and put it in a bread
If you're lazy but not in a rush, legume soup. Throw lentils, canned chopped tomatoes, frozen veg and some spices and maybe stock powder in a pot and wait. If you don't want to wait for lentils to cook, replace by canned beans. Easy, cheap, minimal cleanup (this is usually the part I'm too lazy for) and very reasonably healthy.
I started making soups recently starting from beef or vegetable stock in those boxes (tetrapack?). So damn quick and easy! I do not know why I didn't start doing it earlier.