In medium bowl combine ground beef, eggs and bread crumbs; shape into 24 meatballs.
Brown meatballs and drain on paper towel.
In saucepan bring spaghetti sauce to a boil; gently drop in meatballs. Reduce heat to low and simmer covered until meatballs are done. Place meatballs and sauce to each sub roll, top with cheese, if desired.