Preheat your oven to 425°F and line a baking sheet with parchment paper.
Pound the chicken breast to an even thickness to ensure uniform cooking.
In a shallow bowl, whisk the egg until smooth.
In a separate bowl, combine the almond flour, parmesan cheese, garlic powder, oregano, sea salt, and black pepper.
Dip the chicken breast into the egg wash, then press firmly into the almond flour mixture until thoroughly coated on all sides.
Place the coated chicken on the prepared baking sheet and lightly drizzle with half of the olive oil.
Bake for 15 minutes, then remove from the oven and spoon the marinara sauce over the chicken.
Top with the shredded mozzarella cheese and return to the oven for 5 to 7 minutes until the cheese is bubbly and golden.
While the chicken finishes, spiralize the zucchini into noodles and sauté in a pan with the remaining olive oil for 2 minutes until tender-crisp.
Serve the crispy chicken parmesan immediately over the bed of zucchini noodles.