01 - Preheat oven to 425°F. Line a large baking sheet with parchment paper or lightly grease with oil.
02 - Cut each potato in half lengthwise, then slice each half into 3 to 4 wedges to yield 6 to 8 wedges per potato.
03 - In a large bowl, toss potato wedges with olive oil, garlic powder, smoked paprika, onion powder, sea salt, black pepper, and oregano until evenly coated.
04 - Place wedges in a single layer on the prepared baking sheet, skin-side down and spaced apart for even crisping.
05 - Bake for 20 minutes. Flip wedges carefully, then bake an additional 15 minutes until golden brown and crispy on the edges.
06 - Remove from oven. Sprinkle with chopped parsley and Parmesan cheese if desired. Serve hot.