Taco Casserole 1 7oz. bag Nacho Cheese Doritos, crushed; 1 lb. hamburger, browned; 1 pkg. taco seasoning, mixed according to direction;s 1 (8 oz.) pkg. shredded Cheddar cheese; 1 (8 oz.) pkg. shredded Mozzarella cheese; Shredded Lettuce Sliced tomato. Layer ingredients in 9 x 13 pan as listed – crushed chips, meat and seasonings, 2/3 of cheese, lettuce, tomato, and remaining cheese. Bake at 350 degrees for 15 minutes.