Instructions: Preheat Oven: Preheat your oven to 350°F (175°C). Grease a 9×13-inch baking dish. Prepare the Filling: In a large mixing bowl, combine the cream of chicken soup, sour cream, shredded cheddar cheese, and milk. Stir in the garlic powder, onion powder, salt, and pepper. If using, add the frozen mixed vegetables. Add Chicken: Fold the cooked chicken into the mixture until everything is well combined.
Prepare the Biscuits: Cut each biscuit into quarters. Gently fold the biscuit pieces into the chicken mixture. Assemble the Casserole: Pour the mixture into the prepared baking dish, spreading it out evenly. Drizzle the melted butter over the top. Sprinkle extra shredded cheddar cheese on top if desired. Bake: Bake in the preheated oven for 25-30 minutes or until the biscuits are golden brown and cooked through.
Serve: Let the casserole cool slightly before serving. Enjoy your Chicken Bubble Biscuit Bake Casserole warm! This comforting casserole is perfect for a family dinner and easy to customize with your favorite vegetables or seasonings.