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 smooth.
In a second shallow bowl, combine the almond flour, parmesan cheese, garlic powder, dried oregano, sea salt, and black pepper.
Dip the chicken breast into the egg wash, then press firmly into the parmesan mixture until both sides are fully coated.
Heat the olive oil in a large skillet over medium heat and cook the chicken for 5 to 6 minutes per side until the crust is golden brown and the chicken is cooked through.
While the chicken is cooking, warm the marinara sauce in a small saucepan over low heat.
Remove the chicken from the skillet and set aside.
Add the spiraled zucchini to the same skillet and sauté for 2 minutes until just tender.
Plate the zucchini noodles, top with the crispy chicken breast, and finish with a generous pour of the warm marinara sauce.