Preheat the Air Fryer
Preheat your air fryer to 380°F (193°C) for about 3 minutes. This helps the green beans cook evenly and achieve a nice crisp.
Season the Green Beans
In a mixing bowl, toss the green beans with olive oil, garlic powder, onion powder, salt, and pepper. Make sure the green beans are evenly coated.
Cook the Green Beans
Place the seasoned green beans in the air fryer basket in an even layer. Cook for 8-10 minutes, shaking the basket halfway through for even cooking. They’re done when they’re tender and slightly crispy on the edges.
Optional Garnishes
For an extra layer of flavor, sprinkle with grated Parmesan cheese, lemon zest, or a pinch of red pepper flakes before serving.