Preheat your oven to 400°F (200°C) and lightly grease a baking sheet with the olive oil.
In a shallow bowl, whisk the egg whites until slightly frothy.
In a separate shallow bowl, combine the almond flour, grated parmesan, garlic powder, dried oregano, sea salt, and black pepper.
Dip the chicken breast into the egg whites, ensuring it is fully coated, then dredge it through the almond flour mixture, pressing firmly so the breading adheres.
Place the chicken on the prepared baking sheet and bake for 15-18 minutes, or until the internal temperature reaches 165°F and the crust is golden.
While the chicken is baking, combine the tomato puree and balsamic vinegar in a small saucepan over medium-low heat, simmering for 5 minutes to thicken slightly.
Remove the chicken from the oven, spoon the marinara sauce over the top, and sprinkle with the mozzarella cheese.
Place the chicken back in the oven under the broiler for 1-2 minutes until the cheese is melted and bubbly.
Briefly sauté the zucchini noodles in a non-stick pan for 2 minutes until just tender, then serve the chicken over the noodles and garnish with fresh basil.