Preheat your air fryer to 375°F.
Pound the chicken breast to an even thickness using a meat mallet for uniform cooking.
Whisk the egg white in a shallow bowl until slightly frothy.
In a separate shallow dish, combine the almond flour, parmesan cheese, oregano, garlic powder, sea salt, and black pepper.
Dip the chicken into the egg white, then press firmly into the almond flour mixture to coat both sides thoroughly.
Lightly coat the air fryer basket with olive oil.
Place the breaded chicken in the basket and air fry for 10-12 minutes, flipping halfway through.
Spoon the marinara sauce over the chicken and top with the shredded mozzarella cheese.
Air fry for an additional 2 minutes until the cheese is melted and bubbly.
Briefly sauté the zucchini noodles in a pan over medium heat until just tender and serve the chicken on top, garnished with fresh basil.