Tostada Casserole
["1 lb. ground beef", "1 small onion, grated", "8 oz. can tomato sauce", "1/4 c. water", "2 tsp. chili powder", "4 oz. can diced green chilies", "1/4 lb. Monterey Jack cheese or Muenster cheese", "4 oz. pkg. taco shells"]
["Coarsely break taco shells.", "In a 2-quart bowl, mix beef and onion.", "Cover bowl with waxed paper.", "Cook at High for 4 to 5 minutes, stirring and breaking up meat into small pieces every 2 minutes.", "Tilt bowl, skim and discard excess fat.", "Stir in tomato sauce, water and chili powder.", "Cover.", "Cook at High for 4 minutes or until meat mixture thickens, stirring after 2 minutes. Stir in undrained green chilies and shredded cheese."]
["ground beef", "onion", "tomato sauce", "water", "chili powder", "green chilies", "cheese", "taco shells"]