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 plastic wrap and pound with a meat mallet until it reaches an even 1/2-inch thickness.
In a shallow bowl, whisk the egg white until it becomes slightly frothy and light.
In a second shallow dish, combine the almond flour, parmesan cheese, garlic powder, dried oregano, sea salt, and black pepper.
Dip the chicken breast into the egg white, allowing any excess to drip off, then press it firmly into the almond flour mixture to ensure a thick, even coating.
Place the breaded chicken on the prepared baking sheet and lightly mist the top with the extra virgin olive oil.
Bake for 12 to 15 minutes until the crust is firm and the chicken is nearly cooked through.
Remove from the oven, spoon the marinara sauce over the chicken, and sprinkle with the shredded mozzarella cheese.
Return the pan to the oven for another 3 to 5 minutes until the cheese is melted, bubbly, and slightly browned.
While the chicken finishes, spiralize the zucchini and sauté it in a non-stick pan over medium heat for 2 minutes until just tender, then serve the crispy chicken right on top.