This oven-baked meatball sandwich recipe is a perfect easy dinner idea for busy days. Also great for large groups, game day, or as an on-the-go meal. The ingredients are simple -- you will need meatballs, pasta sauce, mozzarella cheese, and sandwich rolls. Many times I like to make my popular Baked Turkey Meatballs with Spinach for our Meatball Sandwiches, but