Meanwhile, stir together bread crumbs and milk in large bowl; let stand 5 min. Add beef, 3 Tbsp. Parmesan cheese and parsley. Shape into medium-sized meatballs. Place in foil-lined baking pan. Bake 16 to 18 min. or until done (160ºF). Add to tomato sauce, return to heat on medium and cook 3 to 5 min.