Firestation Casserole
["1 lb. ground beef", "1 doz. corn tortillas", "1 can chopped green chilies", "8 oz. mild Cheddar cheese", "1 can cream of mushroom soup", "1 medium onion (optional)"]
["Brown ground beef. Add onions and cook for 2 minutes. Mix cream of mushroom soup, 2/3 can of milk (about 7 ounces) and chopped (diced) green chilies in a bowl. Grate Cheddar cheese. Next, cut or tear 1 dozen corn tortillas into 2-inch squares and place a layer of tortillas in bottom of small oblong or 8-inch square ovenproof baking dish. Top with 1/3 ground beef, 1/3 soup mixture and 1/3 cheese. Repeat layers 2 times. Bake at 350\u00b0 for about 25 minutes."]
["ground beef", "corn tortillas", "green chilies", "Cheddar cheese", "cream of mushroom soup", "onion"]