Preheat oven to 400°F (200°C).

In a large bowl, toss the halved potatoes with olive oil, garlic powder, onion powder, thyme, rosemary, paprika, salt, and pepper until evenly coated.

Arrange the potatoes in a single layer on a baking sheet, cut side down.

Roast in the preheated oven for 25-30 minutes, or until golden and crispy.

Remove from the oven and immediately sprinkle the Parmesan cheese over the hot potatoes.

Garnish with fresh parsley and serve warm.