Tortilla Casserole
["1 lb. ground beef", "1 pkg. taco seasoning mix", "1 tsp. chili powder (optional)", "1/2 tsp. cumin (optional)", "1 small can tomato sauce", "3/4 c. water", "8 corn tortillas", "1 small onion, chopped", "2 c. shredded Cheddar cheese"]
["Preheat oven to 350\u00b0.", "Brown ground beef. Add taco seasoning, chili powder and cumin. Mix well.", "Stir in tomato sauce and water. Simmer about 20 minutes.", "Spray vegetable oil on a 2-quart casserole dish. Place 4 tortillas on bottom of dish.", "Pour 1/2 meat mixture over tortillas. Sprinkle with 1/2 onions and 1/2 cheese. Repeat with remaining tortillas, meat mixture, onions and cheese. Bake approximately 20 minutes until cheese is bubbly. This dish can be frozen."]
["ground beef", "taco seasoning mix", "chili powder", "cumin", "tomato sauce", "water", "corn tortillas", "onion", "Cheddar cheese"]