Preheat your oven to 400°F and line a baking sheet with parchment paper for easy cleanup.
In a shallow bowl, whisk the egg white until it becomes slightly frothy.
In a separate shallow bowl, combine the almond flour, parmesan cheese, sea salt, black pepper, and garlic powder.
Dip the chicken breast into the egg white, then press it firmly into the almond flour mixture until evenly coated on all sides.
Place the breaded chicken on the prepared baking sheet and bake for 15-18 minutes until the crust is golden and the chicken is cooked through.
Remove the chicken from the oven and spoon the marinara sauce over the top, followed by the shredded mozzarella cheese.
Return the chicken to the oven for an additional 2-3 minutes until the cheese is bubbly and melted.
While the cheese melts, heat the olive oil in a skillet over medium heat and sauté the zucchini noodles for 2 minutes until just tender.
Plate the zucchini noodles, top with the crispy chicken parmesan, and garnish with fresh basil before serving.