Goosebump Meatball Subs

In large bowl, mix beef, onion, bread crumbs, ketchup, pepper and eggs. Shape mixture into 16 (1 1/2-inch) meatballs.

In 12-inch skillet, heat oil over medium-high heat. Cook meatballs in oil 8 to 10 minutes, stirring frequently, until thoroughly cooked and no longer pink in center. Remove meatballs from skillet; discard drippings. Wipe out skillet. Return meatballs to skillet; add sauce. Reduce heat to low; cook 8 minutes.

Set oven control to broil. Line cookie sheet with foil; place rolls on cookie sheet. Place 4 meatballs in each roll; top with 2 cheese slices. Broil sandwiches with tops about 5 inches from heat 1 minute or until cheese is melted.