Preheat your oven to 400°F and line a baking sheet with parchment paper.
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 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 or spray with extra virgin olive oil.
Bake for 15 to 18 minutes, or until the chicken is cooked through and the coating is golden and crispy.
Spoon the marinara sauce over the chicken and sprinkle with shredded mozzarella cheese.
Return the chicken to the oven for 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 and serve the chicken parmesan directly on top.