
Preheat the oven to 400ºF (200°C). Grease a large baking sheet with non-stick spray or olive oil. Set aside.
In a bowl, combine 1/4 cup of olive oil, garlic, salt, herbs, pepper and parmesan cheese together, mixing to combine. Add the remaining oil if the parmesan cheese has absorbed most of it.
Toss potatoes through the mixture to evenly coat.
Arrange coated potatoes in a single layer onto prepared baking sheet. Spread them out and bake for 45-50 minutes, carefully turning every 15 minutes or so with tongs or with a spatula, until potatoes are browned and edges are crisp. For extra crispy potatoes, broil (or grill) for 2-4 minutes, or until browned to your liking.