Preheat oven to 350F.
In a mixing bowl, combine beef, pork, salt, pepper, garlic powder, and herbs.
Divide mixture into 12 parts.
Flatten each part between palms and place a cube of mozzarella in the middle.
Wrap the meat around the cheese.
Brush the baking dish with ½ tablespoon olive oil and add the meatballs.
Bake the meatballs for 12 minutes.
In the meantime, heat remaining oil in a skillet. Add garlic and cook until fragrant. Add pureed tomatoes and simmer the sauce for 12 minutes.
Pour the sauce over meatballs and continue to bake for 12 minutes.
Sprinkle the shredded mozzarella on top and pop in the oven for another 5 minutes.
Garnish with parsley and serve.