Put the beans into the air fryer. Drizzle over the oil and add the salt and pepper. Mix well so that the beans are coated.
Cook at 190°C/375℉ for 8-10 minutes. Shake twice during cooking.
Notes
Try not to put too many green beans in the air fryer basket at one time, as they won't get as crispy because the air won't be able to circulate round them.
You may need to cook this recipe in batches depending on the size of your air fryer basket.
Try to enjoy them whilst they are hot. They will lose some of their crispiness as they cool.
Pine nuts can be added before serving to add a nice crunch.