Preheat your oven to 450 degrees Fahrenheit and line a baking pan with parchment paper.
Slice the potatoes into ¼-inch rounds and toss them with olive oil, garlic powder, onion powder, pepper, parsley, and 2 tablespoons of Parmesan cheese.
Arrange the seasoned potato slices on the baking pan and bake for 25-30 minutes.
Sprinkle the remaining Parmesan cheese over the top and bake for an additional 5 minutes.
Serve hot garnished with fresh parsley.
