Preheat oven to 350°. Combine 1 1/2 cups cheese, soup, milk, barbecue sauce, oregano, salt and pepper in large bowl. Stir in potatoes until well coated. Stir in potatoes until well coated. Turn into shallow buttered 1 1/2 quart baking dish; cover with aluminum foil. Bake 45 minutes. Remove foil and bake 15 minutes longer or until potatoes are tender. Remove from oven and sprinkle with remaining 1/2 cup cheese and paprika; let stand 5 minutes before serving.