Chili in a slow cooker.

 Start it in the morning with mostly fresh ingredients. Put extra sharp cheddar and sour cream on it to serve.

 Some ingredients that I like: stew meat ("steak"), onion, mushrooms, garlic, habenero, lime juice and cans of kidney/garbanzo/black/great northern beans.

Tater tot hot dish

Soups (secret is to start with beef stock and add things you like. Just heat it on the stove, very quick and easy.)