Place the chicken breast between two sheets of parchment paper and pound to an even half-inch thickness.
Season both sides of the chicken with sea salt, black pepper, garlic powder, and dried oregano.
Whisk the egg white in a shallow bowl until frothy, and in a separate bowl, combine the almond flour and parmesan cheese.
Dip the chicken into the egg white, then press firmly into the almond-parmesan mixture to coat both sides thoroughly.
Heat olive oil in a skillet over medium-high heat and sear the chicken for 4 to 5 minutes per side until golden brown.
Spread the marinara sauce over the chicken and top with the shredded mozzarella cheese.
Cover the skillet with a lid or place under a broiler for 2 minutes until the cheese is bubbly and completely melted.
Briefly sauté the zucchini noodles in the same pan or a separate skillet for 2 minutes until tender-crisp.
Serve the crispy chicken parmesan over the bed of zucchini noodles and enjoy immediately.