1. Start by cleaning your portobello mushrooms as previously described. Remember to gently wipe, de-gill, and pat them dry to prevent soggy mushrooms.

2. Preheat your air fryer to 380°F. This ensures the mushrooms start cooking at the right temperature for even results.

3. Prepare your filling according to the chosen recipe, mixing all the ingredients thoroughly in a bowl.

4. Spoon the filling into each mushroom cap, packing it lightly to avoid it spilling out during cooking.

5. Place the stuffed mushrooms in the air fryer basket. Make sure they are not touching to allow for air circulation and even cooking.

6. Cook for about 10 minutes at 380°F. The exact cooking times may vary depending on your air fryer model and the size of the mushrooms. The mushrooms are done when they are tender, and the filling is golden brown on top.

7. If you’re using cheese in your filling, you may want to broil the mushrooms in the oven for 1-2 minutes after air frying to get a bubbly and browned cheese top.

8. Let the mushrooms rest for a couple of minutes before serving. This allows the filling to set and makes them easier to handle.