Preheat the oven to 400 degrees F.Coat the bottom of a 13×9-baking dish with the olive oil, and then evenly distribute the grated Parmesan over the olive oil. Sprinkle Zesty Garlic Seasoning over the cheese. Sprinkle with the salt and pepper.Place the potato halves, cut side down, on top of the cheese mixture and bake for 45-50 minutes or until the potatoes are very tender when pierced with the tip of a knife. Precise baking time will depend on the thickness of your potatoes.Cool for five minutes before serving. Remove to a platter with a metal spatula, and garnish with snipped chives, if desired. Leftovers are equally delicious reheated in the oven or eaten cold, my son will attest to this!