Ingredients
18 uncooked jumbo pasta shells1-1/2 pounds lean ground beef (90% lean)1 medium onion, chopped1 can (8 ounces) tomato sauce1/2 cup ketchup1/4 cup prepared mustard1/4 teaspoon pepper1-1/2 cups shredded cheddar cheese, dividedOptional toppings: Shredded lettuce, and chopped pickles and tomatoes
Preparation
Preheat oven to 350°. Cook pasta according to package directions. Drain and rinse in cold water; drain again.
Meanwhile, in a large skillet, cook beef and onion over medium-high heat until beef is no longer pink, 6-8 minutes, breaking beef into crumbles; drain. Stir in tomato sauce, ketchup, mustard and pepper until blended. Stir in 3/4 cup shredded cheese.
Spoon about 2 tablespoons filling into each shell. Place in a greased 11x7-in. baking dish.
Bake, covered, until heated through, 12-15 minutes. Sprinkle with remaining cheese; bake, uncovered, until cheese is melted, about 5 minutes. If desired, serve with optional toppings.
