Preheat the oven to 425 degrees F (220 degrees C).
Place potatoes, Parmesan cheese, olive oil, onion powder, garlic powder, salt, and pepper into a resealable plastic bag. Seal the bag, then shake until potatoes are evenly coated with seasoning. Spread potatoes on a baking sheet.
Bake in the preheated oven until potatoes are easily pierced with a fork, about 25 minutes.