Layered Doritos Casserole

Name: Layered Doritos Casserole
Prep time: 20 min
Cook time: 50 min
Total time: 1 h 10 min
Cuisine: American
Ingredients: 1 family size bag Doritos, any flavor (235 g bag (I used Nacho Cheese)); 1 pound lean ground beef; 1 onion (diced); 1 clove garlic (minced); 1 cup salsa; 1 package low sodium taco seasoning (or homemade taco seasoning); 1 cup sour cream; 1 can cream of chicken soup ( or cream of mushroom soup); 2 cups cheese (shredded, divided (Tex Mex or Cheddar) ); lettuce; tomato; olives; sour cream