Preheat your oven to 400°F and lightly grease a baking sheet with the extra virgin olive oil.
In a shallow bowl, whisk the egg until smooth; in a separate shallow bowl, combine the almond flour, parmesan cheese, garlic powder, oregano, sea salt, and black pepper.
Dip the chicken breast into the egg wash, allowing any excess to drip off, then press it firmly into the almond flour mixture until evenly coated on all sides.
Place the coated chicken on the prepared baking sheet and bake for 15 to 20 minutes, or until the crust is golden brown and the chicken reaches an internal temperature of 165°F.
Remove the chicken from the oven and spoon the marinara sauce over the center, then sprinkle with the shredded mozzarella cheese.
Return the chicken to the oven for an additional 3 to 5 minutes until the cheese is melted and bubbly.
While the cheese melts, lightly sauté the zucchini noodles in a pan for 2 minutes until just tender, then serve the chicken parmesan over the noodles immediately.