Feel free to customize this casserole to suit your taste! For a spicier kick, add some hot sauce or diced jalapenos to the chili layer. If you prefer a meatier dish, consider using a beef chili or adding some precooked sausage slices. Vegetarians can replace the hot dogs with a meat-free alternative and use a vegetarian chili. Adding a layer of sour cream before the final cheese layer can also add a creamy texture that balances out the spiciness.