Mexican Casserole {Aunt Jeri's}

1 lb ground beef
1 medium onion
2 8oz cans tomato sauce
1/2 tsp garlic salt
1 can olives, sliced
1 16oz container sour cream
1 16oz container cottage cheese
1 4oz can green chilies
2 C grated colby jack cheese
Tortilla chips

Brown beef and onion, drain. Add tomato sauce, garlic salt and olives. simmer for a few minutes.
in a medium bowl combine sour cream, cottage cheese and green chilies and set aside.
Crush chips
In a greased 13x9, layer...
Crushed chips - meat mixture - cottage cheese mixture - colby jack cheese - top with more crushed chips
Bake at 350 for 35 minutes