Preheat the oven to 400 degrees. Line a sheet pan with foil or parchment paper and spray with cooking spray.
Wash potatoes and cut in half lengthwise. Cut each half into wedges. About 6-8 wedges for each potato.
Soak potato wedges in cold water for at least 15 minutes. I do this while the oven is preheating and mixing the seasonings: drain potatoes and dry well with paper towels.
Place the oil, garlic powder, seasoning salt, paprika, pepper, and parmesan cheese in a gallon-sized resealable bag.
Place the potato wedges in the bag and seal the bag. Shake to coat the potatoes evenly with the seasoning.
Spread the potatoes in a single layer on the prepared baking sheet—Bake for 35-40 minutes or until golden brown and tender.