Preheat the oven to 425ºF. Wash the potatoes well then cut into ½-inch wide fries.
Place the cut fries in a large bowl and add the olive oil, oregano, garlic powder, salt, pepper, and Parmesan. Toss until the fries are coated in oil and seasoning.
Spread the seasoned fries out onto a large baking sheet covered in parchment paper.
Bake the fries for about 30 minutes, or until well browned, stirring once half-way through.
Serve hot! Optional garnish: chopped parsley and a pinch of Parmesan.