Preheat the oven to 350 degrees F. In a large bowl add the cooked spaghetti squash noodles and marinara sauce and mix to combine then pour into a large 9x13 square or oval baking dish. Sprinkle the cheese on top then add turkey pepperoni.Bake uncovered for 20 minutes or until heated through. If it starts to burn on the sides cover with foil.Remove from oven and add fresh parsley and basil for garnish