Preheat your oven to 425°F and lightly grease a baking sheet with the olive oil.
Season the chicken breast evenly on both sides with sea salt, black pepper, garlic powder, and dried oregano.
In a small shallow bowl, whisk the egg white until slightly frothy; place the panko breadcrumbs in a second shallow bowl.
Dip the seasoned chicken into the egg white, then press firmly into the panko breadcrumbs until the chicken is completely and evenly coated.
Place the coated chicken on the prepared baking sheet and bake for 15 to 18 minutes, or until the crust is golden and the chicken is cooked through.
Remove the pan from the oven, spoon the marinara sauce over the chicken, and sprinkle with the shredded mozzarella.
Return the pan to the oven and broil for 2 to 3 minutes until the cheese is melted and bubbly.
While the cheese melts, lightly sauté the zucchini noodles in a non-stick pan for 2 minutes until just tender.
Plate the zucchini noodles, top with the crispy chicken parmesan, and finish with a sprinkle of grated parmesan cheese.