Preheat your oven to 400°F and line a baking sheet with parchment paper.
Pound the chicken breast to an even thickness and season both sides with sea salt and black pepper.
In one shallow bowl, whisk the egg; in another bowl, combine the almond flour, parmesan cheese, garlic powder, and dried oregano.
Dip the chicken breast into the egg wash, then dredge it through the almond flour mixture, pressing firmly to ensure the coating adheres.
Place the coated chicken on the prepared baking sheet, drizzle with olive oil, and bake for 15 minutes.
While the chicken bakes, spiralize the zucchini into noodles and lightly sauté them in a pan for 2 minutes until just tender.
Remove the chicken from the oven, top with marinara sauce and mozzarella cheese, then broil for 2-3 minutes until the cheese is bubbly and golden.
Serve the crispy chicken parmesan over the bed of zucchini noodles immediately.