Preheat the oven to 425 degrees.Place the potato noodles in a large mixing bowl immediately after spiralizing and pour over olive oil. Toss gently with your fingers to combine and then lay out on a parchment-paper lined baking sheet. Season with salt, pepper and garlic powder and roast for 12-15 minutes or until they start to turn golden brown.Remove the potato noodles from the oven and set it to broil. Sprinkle the potatoes with parmesan cheese and set back in the oven for 3-5 minutes or until golden brown, careful not to burn (a few burnt edges are okay.)Remove from the oven, garnish with parsley and transfer to a serving bowl. Serve immediately.