Step 1

Mix panko with milk and let set 5 minutes

Step 2

Mix soaked panko and remaining ingredients except pasta sauce, mozzarella cheese and shredded parmesan in bowl just until evenly mixed

Step 3

Form meat into golf ball-sized rounds and place in single layer in slow cooker (about 8 meatballs)

Step 4

Cook on high for 4 hours or low for 8 hours

Step 5

During the last 60 minutes pour in pasta sauce and top each meatball with a little slice of cheese and shredded parmesan and heat on high until melted and heated through