Preheat your oven to 400°F and line a baking sheet with parchment paper.
Place the chicken breast between two sheets of plastic wrap and pound to an even half-inch thickness.
In a shallow bowl, whisk the egg white until it becomes slightly frothy.
In a separate shallow dish, combine the almond flour, parmesan cheese, oregano, garlic powder, sea salt, and black pepper.
Dip the chicken breast into the egg white, allowing any excess to drip off, then dredge it in 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, spoon the marinara sauce over the chicken, and sprinkle with the shredded mozzarella.
Switch the oven to broil and cook for 2 to 3 minutes until the cheese is melted and bubbly.
While the cheese melts, heat the olive oil in a large skillet over medium heat and sauté the zucchini noodles for 2 minutes until just tender.
Serve the crispy chicken parmesan immediately over the bed of warm zucchini noodles.