1) In a large bowl, combine eggs and milk, add the breadcrumbs, cheese, salt and pepper and garlic. Add beef and sausage mince and mix well. Shape Into 1 inch balls ( around ping pong ball size), and brown lightly in a frying pan, and transfer to the slow cooker.
2) In another bowl, combine the tomato sauce, paste, onion, broth, water, seasoning and parsley flakes. Mix well and pour over meatballs.