Place the chicken breast between two sheets of parchment paper and pound to an even half-inch thickness.
In a shallow bowl, combine the grated parmesan, almond flour, garlic powder, oregano, sea salt, and black pepper.
Press the chicken breast firmly into the parmesan mixture on both sides until thoroughly and evenly coated.
Heat the olive oil in a non-stick skillet over medium heat.
Add the chicken to the skillet and cook for 4 to 5 minutes per side, or until the crust is golden brown and the chicken is cooked through.
While the chicken cooks, warm the marinara sauce in a small saucepan over low heat.
Remove the chicken from the pan and let it rest for 2 minutes.
In the same skillet used for the chicken, quickly sauté the zucchini noodles for 1 to 2 minutes until just tender but not watery.
Plate the zucchini noodles, top with the warm marinara sauce, and place the crispy chicken on top.
Garnish with fresh basil and serve immediately.