Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
In a shallow bowl, whisk the egg white until it becomes slightly frothy.
In a separate shallow dish, mix together the almond flour, parmesan cheese, dried oregano, garlic powder, sea salt, and black pepper.
Dip the chicken breast into the egg white wash, then press it firmly into the almond-parmesan mixture until evenly coated on all sides.
Place the coated chicken onto the prepared baking sheet and drizzle with 1 teaspoon of the olive oil.
Bake for 15 to 20 minutes, or until the crust is golden brown and the chicken reaches an internal temperature of 165°F.
While the chicken is baking, heat the remaining 1 teaspoon of olive oil in a large skillet over medium heat.
Sauté the zucchini noodles for 2 to 3 minutes until just tender but still bright green.
Warm the marinara sauce in a small saucepan over low heat until simmering.
To serve, place the zucchini noodles on a plate, top with the crispy chicken breast, and finish with a generous ladle of the zesty marinara sauce.