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 until well combined.
In a separate shallow dish, mix together the almond flour, parmesan cheese, garlic powder, dried oregano, sea salt, and black pepper.
Dip the chicken breast into the egg wash, allowing any excess to drip off, then press firmly into the parmesan-almond mixture to coat both sides.
Heat the olive oil in a non-stick skillet over medium heat. Once hot, add the chicken and cook for 5-6 minutes per side until the crust is golden brown and the internal temperature reaches 165°F.
While the chicken cooks, warm the marinara sauce in a small saucepan over low heat.
In a separate pan, lightly sauté the zucchini noodles for 2-3 minutes until just tender but not watery.
Plate the zucchini noodles, top with the crispy chicken breast, and spoon the warm marinara sauce over the center. Garnish with freshly chopped basil.