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 thoroughly until all ingredients are evenly distributed.
03 - Spread the chicken mixture evenly across the bottom of the prepared casserole dish, pressing gently to create a uniform layer.
04 - Pour the sugar-free marinara sauce over the chicken layer, using the back of a spoon to spread it gently and cover the entire surface.
05 - Sprinkle the remaining mozzarella and Parmesan cheeses evenly over the sauce layer, ensuring complete coverage.
06 - Scatter crushed pork rinds over the cheese layer for added texture and crunch.
07 - Bake for 25–30 minutes until the casserole is bubbling around the edges and the cheese topping has developed a golden-brown color.
08 - Remove from oven and let cool for 5 minutes to set. Garnish with chopped fresh basil and serve hot.