To make homemade meatballs, first you need to preheat oven to 350 degrees F. Mix all of the meatball ingredients together.
Scoop golf ball sized meatballs out using a small cookie scoop. and place on a foil lined baking pan, approximately one inch apart. Bake for 30 minutes.
To assemble Meatball Subs
While the meatballs are in the oven, warm up the marinara sauce on the stove over medium heat. Place 2-3 slices of provolone cheese on the bottom of each roll, then place 3 baked meatballs on top of the cheese.
Top each sandwich with the warm marinara sauce and sprinkle mozzarella cheese and fresh basil on top, if desired. Serve immediately.