01 - Preheat the oven to 400°F. Line a baking sheet with parchment paper or lightly oil it.
02 - Pat chicken breasts dry with paper towels. Season both sides generously with salt, black pepper, and garlic powder.
03 - In a shallow bowl, whisk the egg until smooth. In another bowl, combine almond flour (or breadcrumbs), grated Parmesan cheese, and Italian herbs. Mix well.
04 - Dip each chicken breast in the egg, allowing excess to drip off, then dredge in the almond flour mixture. Press gently to ensure coating adheres evenly.
05 - Place coated chicken breasts on the prepared baking sheet. Bake for 20 minutes until golden and cooked through.
06 - Remove chicken from the oven. Spoon marinara sauce evenly over each breast, then top with shredded mozzarella and additional Parmesan cheese.
07 - Return to the oven and bake for 8–10 minutes more, or until the cheese is melted and bubbly and the chicken reaches an internal temperature of 165°F.
08 - While the chicken bakes, heat olive oil in a large skillet over medium heat. Add zucchini noodles and sauté for 2–3 minutes until just tender. Season with salt and pepper.
09 - To serve, divide zucchini noodles among four plates. Top each with a piece of baked chicken parmesan. Garnish with fresh basil leaves.