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, black pepper, garlic powder, and dried oregano.
Whisk the egg white in a shallow bowl until frothy, and place the almond flour in a separate shallow dish.
Dip the chicken breast into the egg white, then dredge it in the almond flour, pressing firmly to ensure an even coating.
Heat avocado oil in an oven-safe skillet over medium-high heat and sear the chicken for 3 minutes per side until the crust is golden brown.
Spoon the marinara sauce over the chicken and top with shredded mozzarella and parmesan cheese.
Transfer the skillet to the oven and bake for 10-12 minutes until the chicken is cooked through and the cheese is bubbly.
While the chicken bakes, lightly sauté the zucchini noodles in a separate pan for 2 minutes until just tender.
Serve the crispy chicken parmesan over the bed of zucchini noodles and enjoy immediately.