Easy Crock Pot Chili

1 large can tomato sauce
1 pound lean ground beef
2 cans beans (kidney beans are fine, but you can use whatever you like)
2 tablespoons chili powder
1/4 cup diced onion (or onion salt)

Combine all of this into a crock pot. Add salt and pepper to taste. Turn it on low and walk away for eight hours. Add a quarter of a cup of water for every additional two hours you intend to cook it.