Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
Pat the chicken breast dry with paper towels and slice into thin cutlets if they are thick.
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 each chicken cutlet into the egg white, shaking off any excess, then press firmly into the almond flour mixture to coat both sides.
Place the coated chicken on the prepared baking sheet and drizzle evenly with olive oil.
Bake for 15 minutes, or until the coating is golden and the chicken is nearly cooked through.
Remove the tray from the oven and spoon the marinara sauce over each piece of chicken, then top with the mozzarella cheese.
Return to the oven for an additional 5 minutes until the cheese is melted and bubbly.
While the chicken finishes, lightly sauté the zucchini noodles in a pan for 2-3 minutes until tender-crisp.
Serve the crispy chicken parmesan over the bed of zucchini noodles immediately.