MIX BLACK OLIVES WITH BEEF MIXTURE (OPTIONAL) 1. Cook beef and chopped onions then drain the grease.
2. Mix can of cream of mushroom, 8 oz of salsa, and brown beef in pan and heat until bubbly.
3. Line the bottom of a 9x13 pan with half the bag of crushed Doritos then layer half the cheese on top of that.
4. Add the beef mixture and top with the leftover Doritos and cheese.
5. Put in a 350 degree preheated oven and bake until cheese is melted and bubbly.