Preheat your oven to 400°F and line a baking sheet with parchment paper.
Slice the chicken breast into thin cutlets and pound them to an even thickness for uniform cooking.
In a shallow bowl, whisk the egg until smooth. In a separate bowl, combine almond flour, parmesan cheese, garlic powder, oregano, sea salt, and black pepper.
Dip each chicken cutlet into the egg wash, then dredge in the almond flour mixture until thoroughly coated.
Heat the avocado oil in a large oven-safe skillet over medium-high heat and sear the chicken for 2 minutes per side until the crust is golden.
Spoon the marinara sauce over each chicken cutlet and sprinkle with the shredded mozzarella cheese.
Place the skillet in the oven and bake for 8 to 10 minutes until the cheese is melted and bubbly and the chicken is cooked through.
While the chicken bakes, lightly sauté the zucchini noodles in a separate pan for 2 minutes until just tender.
Plate the zucchini noodles and top with the crispy chicken parmesan, finishing with a garnish of fresh basil.