Preheat your air fryer to 400°F and lightly grease the basket with a small amount of oil.
Place the chicken breast between two sheets of parchment paper and pound to an even half-inch thickness for uniform cooking.
In a shallow bowl, whisk the egg until smooth to create the binding wash.
In a separate bowl, combine the almond flour, parmesan cheese, garlic powder, oregano, salt, and pepper.
Dip the chicken breast into the egg wash, then dredge it in the almond flour mixture, pressing firmly to ensure a thick crust.
Place the chicken in the air fryer basket, drizzle with olive oil, and cook for 10 to 12 minutes until the exterior is golden and crispy.
Spoon the marinara sauce over the chicken and top with the mozzarella cheese, then air fry for an additional 2 minutes until the cheese is bubbly.
Sauté the spiralized zucchini noodles in a pan for 2 minutes and serve the crispy chicken parmesan directly on top.