Cut chicken breast into roughly 1 inch chunks. In a small mixing bowl, beat egg and season with salt and pepper.
In a medium mixing bowl, combine bread crumbs, Italian seasoning, grated parmesan, shredded parmesan. Mix together.
Dip each chicken piece into egg mixture, then parmesan mixture to coat. Spray air fryer trays well and place chicken on air fryer tray, ensuring no chicken overlaps.
Spray well with cooking spray, air fry at 375 F for 12 minutes, until golden brown. Serve with warm marinara to dip and enjoy!