Preheat your oven to 425°F (220°C).
Wash and peel the sweet potatoes before cutting them into wedges.
In a large bowl, toss the sweet potato wedges with olive oil, garlic powder, salt, and pepper until well-coated.
Sprinkle grated Parmesan cheese over the seasoned wedges and toss again gently.
Spread the seasoned wedges in a single layer on a baking sheet lined with parchment paper and bake for about 25–30 minutes, flipping halfway through.
Once golden brown and crispy, remove from the oven, let cool slightly, and garnish with fresh parsley if desired before serving warm.