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