Preheat the oven to 450ºF. Line a baking sheet with parchment paper or foil and set aside.
To a large bowl, add the green beans, oil, and spices, and toss to coat. Spread the green beans out on the lined baking sheet, and transfer into the oven.
Bake for 25 minutes or until they look dark & crispy around the edges. Turn on the broiler for a few additional minutes for extra crisping.