In a large bowl, combine the first nine ingredients. Crumble beef over mixture and mix well. Shape into 40 meatballs. In a large skillet coated with nonstick cooking spray, brown meatballs in batches; drain.
Place meatballs in a large saucepan. Add pasta sauce; bring to boil. Reduce heat; cover and simmer for 10–15 minutes or until meat is no longer pink. Spoon meatballs and sauce onto bun halves; sprinkle with mozzarella and Parmesan cheese if desired.
{ampz:Custom share for module}