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, grated parmesan cheese, garlic powder, dried oregano, sea salt, and black pepper.
Dip the chicken breast into the egg white, ensuring it is fully coated, then dredge it through the parmesan mixture, pressing firmly to adhere the crust.
Heat the olive oil in a skillet over medium-high heat and sear the chicken for 2-3 minutes per side until the crust is golden brown.
Transfer the chicken to the prepared baking sheet and bake for 10-12 minutes, or until the internal temperature reaches 165°F.
While the chicken bakes, warm the marinara sauce in a small saucepan over low heat.
In the same skillet used for the chicken, lightly sauté the zucchini noodles for 2 minutes until just tender but still crisp.
Serve the crispy chicken over the zucchini noodles, topped generously with the warm marinara sauce.