Season tilapia with salt and pepper. In a small bowl, combine Parmesan cheese, butter, mayonnaise, lemon juice, and dill.
Preheat the air fryer to 390°F,
Spread the parmesan mixture over the tilapia and cook for 6 to 9 minutes or just until the fish flakes easily (145℉).
Immediately remove from the air fryer basket.
Notes
Check the fish early, cooking times can vary based on the thickness of the filets and your brand of air fryer.
Do not overcrowd the air fryer, cook in batches if needed.