Preheat oven to 350°F.
In a large bowl, combine the ground beef, ground pork, bread crumbs, parmesan, garlic, Italian seasoning, salt, eggs and 1 cup of the marinara sauce.
Cut off about 1/4 of the block of cheese and refrigerate until later. Cut the remaining piece into 1/2 inch cubes.
Add the cubed cheese to the meat mixture and combine.
Add the mixture to a large loaf pan and bake for 45-55 minutes, or until the internal temperature of the meatloaf is at least 150°F.
Then, spread the remaining 1/3 cup marinara sauce over the meatloaf and shred the remaining cheese over the top.
Bake an additional 15 minutes, or until the internal temperature of the meatloaf is at least 160°F.
Remove from the oven, let it rest for 5-10 minutes then enjoy warm!