Preheat your oven to 400°F and line a baking sheet with parchment paper for easy cleanup.
Place the chicken breast between two sheets of parchment paper and pound to an even half-inch thickness.
In a shallow bowl, combine the almond flour, grated parmesan, dried oregano, garlic powder, sea salt, and black pepper.
In a second shallow bowl, lightly whisk the egg white until it is slightly frothy.
Dip the chicken breast into the egg white, allowing any excess to drip off, then press firmly into the almond flour mixture to coat both sides.
Place the breaded chicken on the prepared baking sheet and drizzle the top with olive oil.
Bake for 15 to 18 minutes, or until the crust is golden brown and the internal temperature reaches 165°F.
Spoon the marinara sauce over the center of the chicken and sprinkle with the shredded mozzarella.
Return the chicken to the oven for an additional 2 to 3 minutes until the cheese is melted and bubbly.
Serve the crispy chicken immediately over a bed of fresh zucchini noodles.