While the air fryer is preheating, prepare your mushrooms by cleaning off dirt then slicing them into thin strips – set aside afterwards once finished.
In a medium bowl combine together your melted butter, minced garlic, salt and pepper along with prepared mushrooms – stirring everything together until everything is evenly coated from each ingredient’s flavors!
Pour out onto your air fryer tray making sure all sides of mushroom strips are evenly spread out across surface area for optimal distribution of heat/cooking times when using air fryer later on.