Place the green beans in a bowl and pour the oil, salt and pepper over top. Toss or stir to coat.
Line a large sheet pan with a silicone liner or parchment paper. Spread the beans out onto the baking sheet in as close to a single layer as possible.
Bake for 20-25 minutes until tender, stirring every 10 minutes.
Serve.
Notes
LeftoversStore leftovers in an airtight container in the refrigerator for up to 3 days or freeze for up to 3 months. Reheat in the microwave or the oven at 350 F for 8-10 minutes until heated through.