Eldorado Beef Casserole

1 lb. hamburger
1 onion, diced
1 tsp. garlic powder
2 (8 oz.) cans tomato sauce
1 (7 oz.) pitted ripe olives
1 c. cottage cheese
1 c. sour cream
1 can chopped chilies
1 lb. Monterey Jack cheese
1 pkg. nacho or taco Doritos

Fry hamburger with onion and garlic powder until browned and crumbly. Add tomato sauce and slice ripe olives. In a separate bowl, mix cottage cheese, sour cream and chilies. Grate Monterey Jack cheese. Slightly crush Doritos and line 3-quart casserole with 1/3 of them. Cover with half of hamburger mixture, then half of cottage cheese mixture, then half of Jack cheese. Repeat layering.

Bake at 350 degrees uncovered for 45 minutes.