01 -
Preheat oven to 350°F (175°C) and lightly grease a 9x13-inch baking dish.
02 -
In a large bowl, mix cooked chicken, condensed cream of chicken soup, sour cream, mayonnaise, cheddar cheese, and mozzarella cheese. Season with salt and black pepper, stirring until thoroughly blended.
03 -
Transfer the chicken mixture into the prepared baking dish and spread it evenly.
04 -
In a separate bowl, combine crushed Ritz crackers with melted unsalted butter, mixing until the crackers are well coated.
05 -
Distribute the buttered cracker mixture evenly over the top of the chicken layer.
06 -
Bake for 25–30 minutes, or until bubbling at the edges and the topping is golden brown.
07 -
Allow the casserole to rest for a few minutes before serving. Garnish with chopped parsley if desired.