In a large mixing bowl, combine ground chicken, shredded mozzarella, and panko breadcrumbs. Mix until fully incorporated.
Scoop out small portions and shape into nugget-sized pieces.
Preheat air fryer to 400°F (200°C).
Place nuggets in the air fryer basket in a single layer without overcrowding.
Air fry for 10–12 minutes, flipping halfway through, until golden and cooked through.
Serve warm with your favorite dipping sauce.