Preheat oven to 400°F and line a baking sheet with parchment paper.
Slice the chicken breast into thin cutlets and pound to an even thickness.
In a shallow bowl, whisk the egg. In another bowl, combine almond flour, parmesan, oregano, garlic powder, salt, and pepper.
Dip each chicken cutlet into the egg, then dredge in the almond flour mixture, pressing to adhere.
Heat olive oil in an oven-safe skillet over medium-high heat and sear chicken for 2 minutes per side until golden.
Top chicken with marinara sauce and shredded mozzarella, then transfer the skillet to the oven.
Bake for 10 minutes until the cheese is bubbly and the chicken is cooked through.
While chicken bakes, spiralize the zucchini and lightly sauté in a separate pan until tender.
Serve the crispy chicken over the zucchini noodles and garnish with fresh basil.