Beef and Chip Casserole

1 lb hamburger
1 large onion
2 cups corn chips
1 can chili
1 can tomato sauce
1/4 cup grated cheese

Fry meat with onion until brown. In a 9x13 layer ½ chips, ½ meat, ½ chili and ½ tomato sauce. Repeat. Cook 30 minutes at 350'. Sprinkle cheese over top.