Mexican Fiesta
["1 lb. ground beef", "1 onion, chopped", "1 can cream of mushroom soup", "8 oz. Cheddar cheese", "8 oz. Mozzarella cheese", "1 pkg. taco mix", "1 can diced Ro-Tel tomatoes", "1 c. water", "1 pkg. medium size flour tortillas"]
["Preheat oven to 350\u00b0.", "In a 9 x 12-inch baking dish, layer tortilla shells.", "Cover bottom and sides of dish with shells and set aside."]
["ground beef", "onion", "cream of mushroom soup", "Cheddar cheese", "Mozzarella cheese", "taco", "Ro-Tel tomatoes", "water", "flour tortillas"]