01 - Preheat oven to 375°F and lightly grease a medium casserole dish with cooking spray or olive oil.
02 - In a large mixing bowl, combine cooked chicken, softened cream cheese, half the mozzarella, half the Parmesan, Italian herbs, garlic powder, salt, and pepper. Mix until well incorporated.
03 - Spread the chicken mixture evenly across the bottom of the prepared casserole dish, pressing gently to create an even layer.
04 - Pour the sugar-free marinara sauce over the chicken layer, using a spoon to spread gently and cover the surface evenly.
05 - Sprinkle the remaining mozzarella and Parmesan cheese evenly over the sauce layer.
06 - If desired, scatter crushed pork rinds over the cheese for added texture and crunch.
07 - Bake for 25 to 30 minutes until the casserole is bubbling around the edges and the cheese has melted to a golden brown.
08 - Remove from oven and let cool for 5 minutes to set. Sprinkle with chopped fresh basil before serving hot.