In a large bowl, mix together the broccoli, garlic, olive oil, salt, and pepper.
Optional: lightly spray air fryer tray or Ninja Foodi Cook & Crisp Basket with avocado oil, coconut oil, or olive oil. See notes below.
Place seasoned broccoli on the tray or into the Ninja Foodi Cook & Crisp Basket in an even single layer.
Air fry or air crisp at 390°F for 10 minutes, or until broccoli reaches your desired crispness. Halfway through the cooking time, at 5 minutes, lightly toss the broccoli or shake the basket to help ensure even air frying. Return to the air fryer or Ninja Foodi and resume cooking.
When cooking is done, transfer broccoli to a plate and serve immediately.
Notes
Olive oil & cooking spray: I have found that the olive oil used to coat the broccoli during the seasoning portion is enough to keep the broccoli from sticking to my Ninja Foodi Cook & Crisp Basket. However, if you are worried about food sticking to your air fryer tray or basket, you may choose to lightly spray a non-aerosol cooking spray on your air fryer tray or basket before adding the broccoli. You could use coconut oil, avocado oil, or olive oil spray.For crispier broccoli: after the initial 10 minutes is up, continue to air fry in increments of 1 minute, until the broccoli reaches your desired level of crispness.