Preheat the oven to 425°F
Wash and trim the green beans
Pat the green beans dry
Place the green beans on a baking sheet
Drizzle with olive oil
Sprinkle with salt and pepper
Toss to coat evenly
Spread the green beans in a single layer
Bake for 15 to 20 minutes
Stir or flip halfway through
Remove when tender and lightly browned
Serve immediately