1/4teaspoonground black pepper or red pepper flakes
3tablespoonsfreshly grated Parmesan cheeseoptional for serving
Lemon wedgesoptional for serving
Instructions
Rinse the green beans and pat VERY dry. Trim off the ends and halve any longer beans so that all of the pieces are roughly the same length.
Place the green beans in a large mixing bowl. Top with the oil, salt, garlic powder (if using), and black pepper. Toss to thoroughly and evenly coat the beans with the oil and seasonings.
Preheat the air fryer to 375°F. Add half of the green beans in a single layer (it’s OK if they touch, but you don’t want the layer to be thick; for most air fryers, two batches will do it.)
Air fry for 8 to 10 minutes, tossing halfway through, until the green beans are crisp-tender and dark in spots (if you like your green beans with more bite, cook on the shorter end of the time; for more char but a slightly softer bean, cook them for the full 10 minutes). If desired, transfer to a sheet pan and place in a 200℉ oven to keep them warm while you cook the second batch. Repeat with the remaining green beans.
Transfer to a serving plate. Sprinkle generously with the Parmesan. Serve immediately, with lemon wedges squeezed over the top as desired.
Notes
TO STORE: Refrigerate green beans in an airtight storage container for up to 4 days.
TO REHEAT: Rewarm leftovers in the air fryer at 350°F for about 5 minutes, tossing once halfway through. You can also rewarm beans in the microwave.
TO FREEZE: Freeze leftovers in an airtight, freezer-safe storage container for up to 3 months. Let thaw overnight in the refrigerator before reheating.