1 (8 oz.) pkg. Nacho cheese Doritos
1 1/2 lb. hamburger
1 (10 3/4 oz.) can nacho cheese soup
1 pkg. taco seasoning
2 c. diced fresh tomatoes
5 c. shredded lettuce
1 lb. shredded mozzarella cheese
(May use some American or Cheddar)

Crush Doritos on bottom of pan. Layer browned hamburger. Mix cheese soup and taco seasoning. Spread on hamburger layer. Add layers of tomatoes, lettuce and cheese. Bake at 350 degrees for about 1 hour. Top with sour cream and salsa.