Combine the ground beef and ground pork in a large bowl. Add the dry bread crumbs, cheese, parsley, garlic, egg, salt and pepper. Combine the ingredients with your hands until everything is mixed through.

Form meatballs about the size of a golf ball in your hands. Transfer these prepared meatballs to a plate and set aside.

Place the flour in a shallow bowl. Roll each meatball through the flour.

In a large skillet, add the olive oil, and heat over medium high heat. Add the meatballs to the skillet, making sure not to crowd the pan. This step might take 2-3 rounds. Cook the meatball on each side for a total of about 6 minutes. Remove the meatballs and repeat the process if needed.

Drain the excess olive oil from the pan and place back over the flame. Add the marinara sauce and then add the meatballs back to the sauce. Continue to cook the meatballs for about 20 minutes until they are completely cooked, no pink in the center, and the marinara sauce is warmed.