In a large bowl mix together ground beef, pork and remaining meatball ingredients. Add soaked bread crumbs and mix until just combined (don't overmix).
1 pound ground beef, 1/2 pound ground pork, 1/4 cup grated onion, 1 tsp. garlic cloves, 1/4 cup grated parmesan cheese, 1 1/2 tsp. salt, 1/2 tsp. black pepper, 1 tsp. Italian seasoning, 1 tbsp. dried parsley