Pound the chicken breasts to an even 1/2-inch thickness.
Set up a standard breading station with three shallow dishes. Place flour in the first dish. Whisk eggs in the second dish. Mix Panko breadcrumbs, 1/4 cup Parmesan cheese, garlic powder, oregano, salt, and pepper in the third dish.
Dredge each chicken cutlet first in flour, shaking off excess. Dip it into the egg mixture, letting excess drip off. Press firmly into the Panko mixture to coat both sides completely.
Preheat your air fryer to 380°F (195°C). Lightly spray the air fryer basket with oil spray.
Place the breaded cutlets in the air fryer basket in a single layer, ensuring they do not overlap. Spray the tops lightly with oil spray.
Air fry for 10 minutes. Flip the cutlets and spray the second side lightly with oil. Continue to air fry for another 5 to 8 minutes, or until the internal temperature reaches 165°F (74°C) and the crust is golden brown.
Remove the chicken from the air fryer. Top each cutlet with 1/4 cup of marinara sauce and a portion of the mozzarella cheese. Sprinkle with the remaining 2 tablespoons of Parmesan cheese.
Return the topped cutlets to the air fryer basket. Cook at 380°F (195°C) for 2 to 4 minutes, or until the cheese is melted and bubbly.
Serve immediately.
Notes
For the crispiest results, use Panko breadcrumbs instead of regular breadcrumbs.
Do not overcrowd the air fryer basket; cook in batches if necessary to maintain airflow around the chicken.
If your air fryer runs hot, start checking the chicken at the 8-minute mark during the initial cook time.