Preheat your oven to 400°F and line a baking sheet with parchment paper.
Using a sharp knife or a mandoline slicer, cut the peeled potatoes into even 1/8-inch rounds.
Place the potato slices on the baking sheet in a single layer. Drizzle with olive oil and sprinkle with dry seasonings. Toss gently to coat evenly.
Bake for 18-20 minutes, flipping the slices halfway through for even browning. Remove from the oven when the edges are crisp and golden. Allow to cool slightly before serving. Garnish with fresh parsley if desired.