Place the chicken breast between two sheets of parchment paper and pound with a meat mallet until it is an even half-inch thickness.
In a shallow bowl, combine the almond flour, grated parmesan cheese, sea salt, black pepper, garlic powder, and dried oregano.
Press the chicken breast firmly into the almond flour mixture on both sides until thoroughly and evenly coated.
Heat the olive oil in a non-stick skillet over medium-high heat. Add the chicken and cook for 4-5 minutes per side until the crust is golden brown and the chicken is cooked through.
Reduce the heat to low. Pour the marinara sauce over the chicken and top with the shredded mozzarella cheese.
Cover the skillet with a lid for 1-2 minutes until the cheese is completely melted and the sauce is bubbling.
In a separate pan or the microwave, lightly steam the zucchini noodles for 1 minute until just tender but still firm.
Plate the zucchini noodles and top with the crispy chicken parmesan and extra sauce from the pan.