Preheat your oven to 400°F (200°C).
Place the chicken breast between two sheets of parchment paper and pound to an even half-inch thickness.
In a shallow bowl, whisk the egg white until slightly frothy.
In a second shallow bowl, combine the almond flour, parmesan cheese, oregano, garlic powder, sea salt, and black pepper.
Dip the chicken breast into the egg white, then press into the almond flour mixture until evenly coated on both sides.
Heat the olive oil in an oven-safe skillet over medium-high heat.
Sear the chicken for 3-4 minutes per side until the crust is golden and crispy.
Spread the marinara sauce over the chicken and top with the mozzarella cheese.
Place the skillet in the oven and bake for 8-10 minutes, or until the chicken is cooked through and the cheese is melted and bubbly.
While the chicken bakes, lightly sauté the zucchini noodles in a separate pan for 2-3 minutes until just tender.
Serve the crispy chicken over the zucchini noodles and garnish with freshly chopped basil.