Toss the asparagus in the olive oil with salt and pepper.
Place the asparagus in the air fryer in one layer without overcrowding.
Heat up the air fryer (temperature at 375º) and cook for 10 minutes.
Top the asparagus with freshly grated parmesan cheese and a touch of lemon zest for acidic balance.
Notes
Not every air fryer is the same, so be mindful to know your air fryer prior to making an air fryer recipe. Some units only have specific settings (such as the Ninja CRISPi 4-in-1 air fryer, which is what I have), and others go by temperature.Coat the asparagus just enough with the salt, pepper, and olive oil.Make sure to have an even layer of asparagus in the air fryer so that the vegetables cook evenly and get crispy.