Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
Place the chicken breast between two sheets of parchment paper and pound it to an even half-inch thickness for uniform cooking.
In a shallow bowl, whisk the egg white until it becomes slightly frothy.
In a separate shallow dish, combine the almond flour, parmesan cheese, garlic powder, dried oregano, sea salt, and black pepper.
Dip the chicken breast into the egg white to coat, then dredge it through the almond flour mixture, pressing firmly to ensure an even crust.
Place the breaded chicken on the prepared baking sheet and bake for 15-18 minutes until the internal temperature reaches 165°F.
Remove the chicken from the oven, spoon the marinara sauce over the top, and sprinkle with the mozzarella cheese.
Return the chicken to the oven for 3-5 minutes, or until the cheese is bubbly and golden.
While the chicken finishes, spiralize the zucchini into noodles and sauté them in a pan with olive oil for 2-3 minutes until just tender.
Serve the crispy chicken parmesan over the warm zucchini noodles and enjoy immediately.