Preheat your oven to 400°F and line a rimmed baking sheet with parchment paper.
Place the chicken breast between two sheets of plastic wrap and pound to an even 1/2-inch thickness for uniform cooking.
Whisk the egg white in a shallow bowl until it becomes light and frothy.
In a separate shallow dish, whisk together the panko, almond flour, garlic powder, oregano, sea salt, and black pepper.
Dip the chicken breast into the egg white, shaking off any excess, then press firmly into the breading mixture until fully coated.
Place the breaded chicken on the prepared baking sheet and mist the top lightly with the olive oil.
Bake for 15-18 minutes until the crust is golden brown and the internal temperature of the chicken reaches 165°F.
Remove from the oven, spoon the marinara sauce over the chicken, and sprinkle with the mozzarella cheese.
Switch the oven to broil and cook for 2-3 minutes until the cheese is melted, bubbly, and slightly toasted.
While the cheese melts, quickly sauté the zucchini noodles in a non-stick pan over medium heat for 2 minutes until tender-crisp, then serve the chicken over the noodles and garnish with parmesan.