Preheat your oven to 400°F and line a baking sheet with parchment paper.
Season the chicken breast evenly on both sides with sea salt, black pepper, and garlic powder.
In a shallow bowl, whisk together the almond flour, grated parmesan cheese, and dried oregano.
Lightly brush the chicken breast with olive oil, then press it firmly into the almond flour mixture until thoroughly coated.
Place the chicken on the prepared baking sheet and bake for 15 to 18 minutes until the internal temperature reaches 165°F and the crust is golden.
Remove from the oven, spoon the marinara sauce over the chicken, and top with the shredded mozzarella cheese.
Switch the oven to broil and return the chicken for 2 to 3 minutes until the cheese is melted and bubbly.
While the chicken rests, quickly sauté the zucchini noodles in a pan for 2 minutes and serve the chicken parmesan directly on top.