Easy to Stuff Manicotti

My Family LOVES this recipe from My Family Meal Planner and it is so Easy!  

(I am not a professional photographer as you can tell :))

Easy to Stuff Manicotti

1 lb ground beef
½ cup chopped onion
1 (26 oz) jar spaghetti sauce
14 pieces string cheese
1½ cups shredded mozzarella cheese
1 pkg Manicotti

Cook manicotti according to package directions. Meanwhile, in a large skillet, cook beef and onion over medium heat; drain. Stir in the spaghetti sauce. Spread half of the meat sauce into a greased 9x13 in. pan.  Drain manicotti; stuff each shell with a piece of string cheese. Place over meat sauce; top with remaining sauce. Cover and bake at 350° for 25-30 minutes or until heated through. Sprinkle with mozzarella cheese. Bake, uncovered, for 5-10 minutes or until the cheese is melted.