Preheat your oven to 400 degrees Fahrenheit.
In a large mixing bowl, combine the fresh green beans with olive oil, grated parmesan cheese, panko bread crumbs, salt, and garlic powder. Toss everything together until the green beans are evenly coated in the mixture.
Spread the coated green beans out in a single layer on a large rimmed baking sheet.
Place the baking sheet in the oven and roast for 15-20 minutes, stirring halfway through to promote even cooking.
Once roasted to your liking, remove them from the oven and transfer to a serving platter. For an extra touch of flavor, feel free to sprinkle more parmesan cheese on top before serving!