Preheat your oven to 400°F and line a baking sheet with parchment paper.
Pat the chicken breast dry with a paper towel and season both sides with sea salt and black pepper.
In a shallow bowl, whisk the egg white until it becomes slightly frothy.
In a separate shallow dish, combine the almond flour, parmesan cheese, and dried oregano.
Dip the chicken breast into the egg white, then dredge it through the almond-parmesan mixture, pressing firmly to ensure an even coating.
Place the chicken on the prepared baking sheet and bake for 18 to 22 minutes until the crust is golden and the internal temperature reaches 165°F.
While the chicken is baking, use a spiralizer to turn the zucchini into thin noodles.
Heat the olive oil in a skillet over medium heat and sauté the zucchini noodles for 2 to 3 minutes until tender-crisp.
Warm the marinara sauce in a small saucepan over low heat.
Plate the zucchini noodles, top with the warm marinara and the crispy chicken, then garnish with fresh basil.