1 lb. hamburger
1 lg. onion, chopped
1 can mushroom soup
1 can taco sauce (I use RoTel 3/4 can)
1 c. milk
1 pkg. tortilla
1/2 lb. grated cheese

Fry meat and onion, mix soup, taco sauce and milk, add to meat mixture. In a casserole place layer of broken pieces of tortilla, layer of meat mixture and cheese. Alternate in layers ending with cheese. Bake at 350 degrees for 1 hour. Don't fill dish too full, will bubble over.