Preheat your oven to 400°F and line a baking sheet with parchment paper for easy cleanup.
Place the chicken breast between two pieces of plastic wrap and pound to an even half-inch thickness.
In a shallow bowl, whisk the egg white until it becomes light and frothy.
In a second shallow bowl, combine the almond flour, grated parmesan, garlic powder, oregano, sea salt, and black pepper.
Dip the chicken breast into the egg white, shaking off any excess, then dredge it through the almond flour mixture, pressing firmly to coat both sides.
Place the coated chicken on the prepared baking sheet and bake for 15 to 18 minutes until the internal temperature reaches 165°F.
Remove from the oven and spoon the marinara sauce over the center of the chicken, then sprinkle with the shredded mozzarella.
Switch the oven to the broil setting and return the chicken to the oven for 2 to 3 minutes until the cheese is bubbly and golden brown.
While the chicken rests, lightly sauté the zucchini noodles in a pan for 2 minutes until just tender.
Serve the crispy chicken parmesan over the zucchini noodles and enjoy immediately.