Ingredients

1 package (8 ounces) manicotti shells1 pound ground beef1/2 cup chopped onion1 jar (24 ounces) spaghetti sauce14 pieces string cheese1-1/2 cups shredded part-skim mozzarella cheese

Preparation

Cook manicotti according to package directions. Meanwhile, in a large skillet, cook beef and onion over medium heat until meat is no longer pink; drain. Stir in spaghetti sauce. Spread half of the meat sauce into a greased 13x9-in. baking dish.

Drain manicotti; stuff each shell with a piece of string cheese. Place over meat sauce; top with remaining sauce. Cover and bake at 350° until heated through, 25-30 minutes.

Sprinkle with mozzarella cheese. Bake until the cheese is melted, 5-10 minutes longer.