Preheat your oven to 400°F and line a baking sheet with parchment paper.
Pound the chicken breast to an even thickness to ensure uniform cooking.
In a shallow bowl, whisk the egg white until slightly frothy.
In a separate bowl, combine the almond flour, parmesan cheese, garlic powder, oregano, sea salt, and black pepper.
Dip the chicken breast into the egg white, then press firmly into the almond flour mixture until it is thoroughly coated.
Place the coated chicken on the prepared baking sheet and drizzle with olive oil.
Bake for 15-18 minutes until the crust is golden and the chicken is cooked through.
Spoon the marinara sauce over the chicken and sprinkle with the shredded mozzarella cheese.
Return to the oven for 3-5 minutes until the cheese is melted and bubbly.
Briefly sauté the zucchini noodles in a pan for 2 minutes until just tender, then serve the chicken on top and garnish with fresh basil.