Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper for easy cleanup.
Place the chicken breast between two sheets of plastic wrap and gently pound with a meat mallet to an even 1/2-inch thickness.
In a shallow bowl, whisk the egg white until it becomes slightly frothy.
In a separate shallow bowl, combine the panko breadcrumbs, parmesan cheese, garlic powder, dried oregano, sea salt, and black pepper.
Dip the chicken breast into the egg white, ensuring it is fully coated, then dredge it in the panko mixture, pressing firmly so the crumbs adhere.
Place the breaded chicken on the prepared baking sheet and drizzle or spray with the extra virgin olive oil.
Bake for 15-18 minutes, or until the chicken is cooked through and the crust is golden and crispy.
Remove from the oven, spoon the marinara sauce over the chicken, and top with the mozzarella cheese.
Return to the oven and broil for 2-3 minutes until the cheese is melted and bubbling.