Preheat your oven to 350°F (180ºC) and grease a 9x13-inch baking dish.

In a large mixing bowl, combine the shredded cooked chicken, ranch dressing mix, and shredded cheese, then add crispy bacon, sour cream, and cream of chicken soup. Stir until creamy.

Pour the filling into the greased baking dish and spread it evenly.

In a separate bowl, melt butter and mix it with crushed Ritz crackers until coated.

Sprinkle the Ritz cracker mixture over the filling and bake for 30 minutes until golden brown.

Let it cool for 5-10 minutes before serving to allow it to set.