Rinse the bunches of broccolini and trim the stems from the bottom a bit. Wrap in paper towels to remove the moisture on the outside. Put in a bowl, toss with olive oil and then add salt, pepper and whatever other seasonings you love.
Pour 1/4 c water under the air fryer basket. Put the tenders in the air fryer basket. Sprinkle chopped garlic on top. Bake in a preheated air fryer at 400 degrees F for 5 minutes. Then flip all pcs over.
Sprinkle parmesan crumbs and parmesan flakes over the top if desired and bake for an additional 2 minutes or until they are as tender as you'd like.