Meatball Sub Sandwich: Place cooked meatballs in submarine roll. Top with heated marinara or spaghetti sauce. Sprinkle with grated Parmesan or shredded mozzarella cheese.
Mix ground beef, egg and Seasoning Mix in large bowl until well blended. Shape into 1 1/2-inch meatballs.
Heat oil in large skillet on medium heat. All meatballs; cook 10 minutes or until browned and cooked through, turning frequently.
Serve with hot cooked pasta and your favorite sauce, if desired