Preheat oven to 425 degrees F, line a baking sheet with foil for easy clean up if desired.
Wash and thoroughly dry green beans. You don't want any water on the beans before adding them to the baking sheet.
Add dry green beans to the baking sheet, drizzle with olive oil and salt. Toss to fully coat the beans in the oil and salt.
Roast in the oven for 15 minutes, then remove from oven and turn beans ver with a spatula. Return to the oven and roast for another 10 minutes, until getting slightly browned. Serve right away.