Preheat the air fryer: Set to 390°F (200°C) for 3–5 minutes.
Lightly spray the basket with oil to prevent sticking.
Mix the base: In a large bowl, combine ground chicken, 1/4 cup grated Parmesan, egg, 1/4 cup breadcrumbs, parsley, garlic powder, onion powder, oregano, red pepper flakes (if using), salt, black pepper, and olive oil. Stir gently until just combined. Avoid overmixing to keep the bites tender.
Prep the coating: In a shallow bowl, stir together the remaining 1/4 cup breadcrumbs and 1/4 cup Parmesan.
This adds extra crunch and cheesy flavor.
Shape the bites: With slightly damp hands, scoop about 1 heaping tablespoon of the chicken mixture and roll into small balls or nuggets. Aim for 18–22 bites. Lightly press each one into the breadcrumb-Parmesan coating to cover all sides.
Arrange and spray: Place bites in a single layer in the air fryer basket, leaving space between each.
Lightly spray the tops with oil for even browning. Work in batches if needed.
Air fry: Cook for 8–10 minutes, flipping halfway. They’re done when the exterior is golden and the internal temperature reaches 165°F (74°C).
Optional cheesy finish: If you’d like a melty top, add a dab of marinara and a pinch of mozzarella to each bite and air fry for 1–2 more minutes until the cheese is melted and bubbly.
Serve: Transfer to a plate, sprinkle with fresh basil or parsley, and serve with warm marinara on the side.