Drain potatoes. For the oven, preheat to 450 degrees. Place on a lined baking sheet. Using a fork (or your gloved hand) press down on potatoes to “smash.” Drizzle with olive oil, seasoning and herbs, then roast for 15 minutes or until smashed areas of potatoes are beginning to crisp up. In last 5 minutes of cooking, sprinkle with parmesan. Remove and serve.