These giant slow cooker meatballs are a delicious and easy-to-make dish that will satisfy any meat lover. Made with a combination of ground beef, breadcrumbs, Parmesan cheese, and Italian seasoning, these meatballs are packed with flavor. Slow cooked in a rich tomato sauce, they become tender and juicy. Serve them over spaghetti or in a sub roll for a hearty and comforting meal.