01 -
Set oven temperature to 400°F (204°C) and allow it to fully heat.
02 -
In a large mixing bowl, combine the green beans, olive oil, kosher salt, Parmesan cheese, and panko breadcrumbs; toss thoroughly to coat all beans evenly.
03 -
Spread the coated green beans in a single layer on a large rimmed baking sheet to ensure even roasting.
04 -
Place the baking sheet in the oven and roast for 15 minutes, then stir or toss the beans to promote even browning. Continue roasting for an additional 5 minutes until golden and crisp-tender.