Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper or a wire rack.
Place the chicken breast between two sheets of parchment paper and pound to an even half-inch thickness.
In a shallow bowl, whisk the egg whites until frothy. In a second bowl, combine the almond flour, grated parmesan, garlic powder, oregano, sea salt, and black pepper.
Dip the chicken breast into the egg whites, then dredge through the almond flour mixture, pressing firmly to ensure an even coating on all sides.
Place the breaded chicken on the prepared baking sheet and lightly mist with olive oil. Bake for 15-18 minutes until the internal temperature reaches 165°F.
Remove from the oven, spoon the marinara sauce over the chicken, and top with the mozzarella cheese.
Return to the oven and broil for 2-3 minutes until the cheese is bubbly and golden brown.
While the chicken rests, lightly sauté the zucchini noodles in a pan with a splash of water or oil for 2 minutes until just tender.
Serve the crispy chicken parmesan over the bed of zucchini noodles and enjoy immediately.