Butterfly the chicken breast by slicing it horizontally to ensure even thickness and faster cooking.
In a shallow bowl, whisk the egg until smooth for the dredging station.
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 wash, allowing any excess to drip off, then press firmly into the parmesan mixture to coat both sides.
Heat the olive oil in a non-stick skillet over medium heat.
Place the chicken in the skillet 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, flash-sauté the zucchini noodles for 2 minutes until just tender, then drain any excess moisture.
Plate the zucchini noodles and place the crispy chicken on top.
Spoon the warm marinara sauce over the chicken and garnish with freshly chopped basil.