Preheat your oven to 425°F and line a baking sheet with parchment paper for easy cleanup.
In a shallow bowl, whisk the egg white until it becomes light and frothy.
In a separate shallow bowl, combine the panko breadcrumbs, parmesan cheese, garlic powder, oregano, sea salt, and black pepper.
Dip the chicken breast into the egg white, ensuring it is fully coated, then press it firmly into the panko mixture until the crust is even on all sides.
Place the breaded chicken onto the prepared baking sheet and lightly drizzle with the extra virgin olive oil.
Bake for 15 to 18 minutes until the panko crust is golden brown and the chicken is cooked through.
Spoon the marinara sauce over the center of the chicken and top with the part-skim mozzarella cheese.
Return the chicken to the oven for an additional 3 to 5 minutes until the cheese is bubbly and melted.
While the cheese melts, lightly sauté the zucchini noodles in a non-stick pan over medium heat for 2 minutes until tender-crisp, then serve the chicken over the noodles.