Preheat your oven to 400°F and line a baking sheet with parchment paper for easy cleanup.
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, oregano, sea salt, and black pepper.
Dip the chicken breast into the egg white to coat completely, then dredge it in the almond flour mixture, pressing the coating firmly onto the meat.
Place the chicken on the prepared baking sheet and bake for 15-18 minutes until the crust is golden and the chicken is cooked through.
Remove the tray from the oven, spoon the marinara sauce over the chicken, and top with the shredded mozzarella cheese.
Return the chicken to the oven for another 3-5 minutes until the cheese is bubbly and perfectly melted.
While the cheese melts, lightly sauté the zucchini noodles in a pan with the olive oil for 2 minutes until just tender.
Serve the crispy chicken parmesan immediately over the bed of zucchini noodles.