Begin by draining the canned green beans and patting them dry with paper towels. Removing excess moisture is key for achieving crispiness.
In a mixing bowl, toss the green beans with a little olive oil. Ensure they are evenly coated.
Sprinkle with garlic powder, onion powder, salt, and black pepper. Toss again to distribute the seasonings evenly.
If you’re using Parmesan cheese or red pepper flakes, add them now.
Preheat your air fryer to around 380°F (190°C). This helps start the cooking process quickly, ensuring a crispy texture.
Place the seasoned green beans in the air fryer basket. Spread them out in a single layer for even cooking.
Air fry for about 5-7 minutes. Shake the basket or stir the green beans halfway through to ensure they cook evenly. The exact time might vary depending on your air fryer model and how crispy you want the beans.
The green beans should be golden brown and crispy when done. Adjust the cooking time if needed based on your texture preference.
Once cooked to your liking, carefully remove the green beans from the air fryer.
Serve them hot as a delicious and crispy side dish.