Taco Bake
["2 lb. ground beef", "1 1/2 c. chopped onions", "1 (15 oz.) can tomato sauce", "1 (15 oz.) can kidney beans (undrained)", "1 1/2 tsp. chili powder", "1 1/4 tsp. salt", "1/4 tsp. pepper", "12 taco shells", "2 c. hard yellow cheese, grated", "1/2 small head lettuce", "2 medium tomatoes, sliced"]
["Brown beef and onions about 10 minutes.", "Stir in tomato sauce, kidney beans, chili powder, salt and pepper.", "Break taco shells in 1/2 at fold.", "Arrange on bottom of 13 x 9-inch baking dish.", "Spoon meat mix over tacos and sprinkle with cheese.", "Bake at 350\u00b0 for 15 to 20 minutes or until hot.", "If desired, top with lettuce and tomatoes."]
["ground beef", "onions", "tomato sauce", "kidney beans", "chili powder", "salt", "pepper", "taco", "yellow cheese", "head lettuce", "tomatoes"]