Preheat the Oven: Preheat your oven to 350°F (175°C).
Prepare the Baking Dish: Pour the melted butter into a 9x13-inch baking dish and spread it evenly across the bottom.
Layer Chicken and Vegetables: Spread shredded chicken over the butter, followed by an even layer of frozen peas and carrots. Sprinkle garlic powder, onion powder, and black pepper over the top. Do not stir.
Add the Creamy Sauce: In a bowl, whisk together the cream of chicken soup and chicken broth. Pour this mixture evenly over the chicken and vegetables.
Prepare the Biscuit Topping: In a separate bowl, mix the Cheddar Bay Biscuit Mix, whole milk, and shredded cheddar cheese until smooth. Spread this batter evenly over the dish.
Bake the Cobbler: Place the dish in the oven and bake for 50-60 minutes, or until the biscuit topping is golden brown and fully cooked.
Add the Finishing Touch: While the cobbler bakes, mix the reserved seasoning packet with 2 tablespoons of melted butter. Once baked, brush this seasoned butter over the hot biscuits for extra flavor.
Serve and Enjoy: Allow the cobbler to cool for 5-10 minutes before serving. Scoop onto plates and enjoy the creamy, cheesy goodness!