Preheat oven to 350 degrees F.
Rub garlic pepper seasoning into pork loin. Heat a small amount of oil in a pan and sear all sides of meat. Roast covered in oven until fork tender, at least 35 minutes. Combine bread cubes, butter, apple juice, apples, cranberries, poultry seasoning, and salt and pepper in a bowl and mix well. Bake stuffing uncovered in oven until dry and fluffy, 35 to 40 minutes. Let pork rest before slicing. Lay slices of pork loin over stuffing and finish with any type of brown sauce.
*Chef's Note: You could also substitute 1 cup of dried cranberries for the fresh, if you'd like, which are a little sweeter and more intense in flavor.