For a gourmet twist on a classic grilled cheese, try this air fryer recipe featuring mushrooms and Swiss cheese. Start by sautéing sliced mushrooms in a pan with a little olive oil until they are golden brown and tender. Spread a layer of Swiss cheese on one slice of whole wheat bread, top with the sautéed mushrooms, and add another layer of Swiss cheese. Place another slice of bread on top and lightly brush the outside of the sandwich with olive oil. Cook in the air fryer at 375°F for about 5 minutes, or until the bread is crispy and the cheese is melted. The combination of the earthy mushrooms and the nutty Swiss cheese creates a rich and satisfying grilled cheese sandwich.