
Oven Prep: Preheat oven to 350°F (175°C). Grease a 9x13-inch baking dish.

Combine Filling: In a large bowl, mix chicken, cream of chicken soup, sour cream, mayonnaise, cheddar, and mozzarella. Season with salt and pepper.

Assemble in Dish: Spread chicken mixture evenly in the prepared dish.

Topping: Mix crushed crackers with melted butter. Sprinkle over the chicken mixture.

Bake: Cook in the oven for 25-30 minutes until golden and bubbly.

Serve: Let cool slightly, garnish with parsley if desired, and serve warm.