Preheat your oven to 400°F and line a baking sheet with parchment paper for easy cleanup.
In a shallow dish, whisk together the almond flour, grated parmesan, oregano, garlic powder, sea salt, and black pepper.
In a separate small bowl, lightly whisk the egg white until it is slightly frothy.
Dip the chicken breast into the egg white, ensuring it is fully coated, then dredge it through the almond flour mixture, pressing firmly to adhere the crust.
Place the chicken on the prepared baking sheet and bake for 15 to 18 minutes, or until the chicken is nearly cooked through.
Remove the tray from the oven, spoon the marinara sauce over the chicken, and top with the shredded mozzarella cheese.
Return to the oven for an additional 5 minutes, or until the cheese is melted and bubbly.
While the chicken finishes, heat the olive oil in a skillet over medium heat and sauté the zucchini noodles for 2 minutes until just tender.
Serve the crispy chicken parmesan directly over the zucchini noodles and enjoy immediately.