Preheat the Oven: Preheat your oven to 425°F (220°C) and line a large baking sheet with parchment paper for easy cleanup.
Prepare the Sweet Potatoes: Wash and scrub the sweet potatoes thoroughly. Cut them into 1-inch thick wedges.
Make the Seasoning Mixture: In a small bowl, combine olive oil, minced garlic, smoked paprika, onion powder, salt, black pepper, and red pepper flakes if using. Mix well.
Toss the Wedges: In a large bowl, toss the sweet potato wedges with the garlic oil mixture until evenly coated.
Add Parmesan Cheese: Sprinkle half of the grated Parmesan over the wedges and mix again for even coverage.
Arrange on Baking Sheet: Spread the wedges in a single layer on the prepared baking sheet without overcrowding.
Bake: Bake for 25-30 minutes, turning halfway through, until golden brown and crisp.
Final Touch: Remove from oven and sprinkle remaining Parmesan cheese on top while wedges are hot to slightly melt.
Garnish and Serve: Transfer to a platter, sprinkle fresh parsley on top, and serve immediately with your favorite dipping sauce or enjoy as is!