Add the broccoli to a medium bowl and pour in the olive oil. Add the pinch of salt, the red pepper flakes and stir using a rubber spatula.
Once everything is well coated, place the broccoli florets in the air fryer basket. Sprinkle one tablespoon of the grated parmesan cheese on top and and air fry for 3-5 minutes.
You can serve it as is or add a little more cheese on top!