We're talking a single bowl here, and fork. If you're that hard up that you can't even wash something out with water. Clean it out with a towel, and use it again. Shit, as a bachelor, I do that now, and I've got plenty of cash.
I cook stews in a rice cooker w/ slow cook setting, and I eat the stew right out of the cooker pan. Cheap, healthy, quick and one (nonstick) dish to deal with.
Salads are a thing.