Prep the oven and pan: Preheat your oven to 400°F (200°C). Lightly grease a 9x13-inch baking dish.
Butterfly or halve the chicken: If using large breasts, carefully slice them in half horizontally to make thinner cutlets. Pat dry.
Season both sides with salt and pepper.
Mix the “breading”: In a shallow bowl, combine almond flour, 1/2 cup grated Parmesan, Italian seasoning, garlic powder, and a pinch of red pepper flakes if using.
Coat the chicken: Press each piece of chicken into the almond-Parmesan mixture to coat both sides. Shake off excess.
Sear for flavor: Heat 2 tablespoons oil in a large skillet over medium-high heat. Sear the chicken 2–3 minutes per side until lightly golden.
You’re not cooking through—just building color and flavor.
Layer in the dish: Spread about 1/2 cup marinara on the bottom of the baking dish. Arrange the seared chicken on top.
Add sauce and cheese: Spoon the remaining marinara over the chicken. Top evenly with shredded mozzarella and the remaining 1/4 cup Parmesan.
Bake: Place in the oven and bake 18–22 minutes, or until the chicken reaches an internal temperature of 165°F (74°C) and the cheese is bubbling.
Optional broil: For extra browning, broil 1–2 minutes at the end.
Watch closely so it doesn’t burn.
Rest and garnish: Let it rest 5 minutes. Sprinkle with chopped fresh basil or parsley. Serve warm.