Craving a hot, comforting meatball sub? We've found the top chain restaurants serving them with provolone cheese.

A well-made meatball sub is one of the most filling and satisfying sandwiches a hungry diner can opt for, with many restaurants offering versions of this Italian-American staple on their menus.

Add Yahoo as a preferred source to see more of our stories on Google. Meatball subs are an Italian-American dish made up of meatballs, marinara sauce and melted cheese on a hoagie or Italian roll. The ...