Creating the BBQ Chicken Cornbread Casserole is simple when you follow these straightforward steps:

1. Preheat Oven: Begin by preheating your oven to 400°F (200°C) to ensure it’s ready for baking.
2. Mix Chicken and BBQ Sauce: In a large bowl, combine the shredded chicken and BBQ sauce, mixing until well-coated.
3. Add Corn and Cheese: Stir in the corn and shredded cheese into the chicken mixture until evenly distributed.
4. Prepare Cornbread Mix: In another bowl, prepare the cornbread mix according to package instructions. Typically, this involves mixing the cornbread mix with the milk, eggs, and olive oil.
5. Combine Mixtures: Fold the chicken and BBQ mixture into the cornbread batter until just combined. Ensure not to overmix; a few lumps are fine.
6. Transfer to Casserole Dish: Pour the combined mixture into a greased 9×13-inch casserole dish, spreading it evenly.
7. Season: Sprinkle garlic powder, onion powder, salt, and pepper on top of the mixture for added flavor.
8. Bake: Place the casserole in the oven and bake for 30-35 minutes or until the cornbread is golden brown and a toothpick inserted into the center comes out clean.
9. Cool and Serve: Once baked, allow the casserole to cool for a few minutes before serving to let the flavors meld beautifully.

These steps will guide you to creating a deliciously satisfying casserole that will have everyone coming back for seconds.