01 - Preheat oven to 375°F and lightly grease a medium casserole dish with cooking spray or butter.
02 - Combine cooked chicken, softened cream cheese, half the mozzarella, half the Parmesan, Italian herbs, garlic powder, salt, and pepper in a large bowl. Mix until evenly distributed.
03 - Spread the chicken mixture evenly across the bottom of the prepared casserole dish, pressing lightly to create an even layer.
04 - Pour the sugar-free marinara sauce over the chicken layer. Use a spoon to spread gently, covering the entire surface without disturbing the chicken base.
05 - Sprinkle the remaining mozzarella and Parmesan cheeses evenly over the marinara sauce, ensuring complete coverage.
06 - If desired, scatter crushed pork rinds over the cheese layer for added texture and a golden crust.
07 - Bake for 25 to 30 minutes, or until the sauce bubbles around the edges and the cheese topping turns golden brown.
08 - Remove from oven and let rest for 5 minutes to set. Sprinkle with chopped fresh basil before serving hot.