2teaspoonsfresh chopped thyme or rosemary, or 1 teaspoon dry
Place unpeeled potatoes in a large pot and add water until covered by about 1-inch. Add 1 tablespoon of salt. Place pot over high heat, cover, and bring to a boil. Reduce heat slightly to keep potatoes at a boil for about 15 minutes, or until tender when pierced with a sharp knife (but not falling-apart tender).
Meanwhile, preheat oven to 450 degrees F and coat a large rimmed baking sheet with non-stick cooking spray. Drain and transfer potatoes to prepared baking sheet, about 1-inch apart. Use a potato masher or the flat bottom of a clean glass to smash potatoes down lightly, keeping intact. Sprinkle with a little salt and pepper, drizzle with olive oil, sprinkle with Parmesan, and sprinkle with a little thyme or rosemary. Roast in preheated oven for 20 to 25 minutes until browned and crispy.
Try using seasoned salt instead of salt and pepper. Also delicious with different cheeses - cheddar, smoked gouda, etc. If using a softer cheese, add towards end of baking time.