Heat the oven to 400°. Spray a pan with cooking spray or cover with aluminum foil.
In a small bowl, combine the bread crumbs and milk. Let sit for 2 minutes to absorb the milk.
In a large bowl, mix the ground beef, ground pork, Parmesan cheese, onion, garlic, Italian seasoning, eggs, sea salt and breadcrumb mixture.
Use a large ice cream scoop and scoop out meatballs. Wet your hands with water and roll into balls.
Place the meatballs in the oven and bake for 15-20 minutes or until the internal temperature reaches 165° F.
Remove from the oven. Either cool and store for later use, or toss in your favorite sauce and serve with pasta or polenta.