For an extra layer of flavor, consider adding a pinch of smoked paprika or a dash of hot sauce to the mixture before baking. Feel free to experiment with different types of cheese, such as Monterey Jack or Pepper Jack, to customize the flavor profile. This casserole can be prepared ahead of time and stored in the refrigerator for up to 24 hours before baking. Just add a few minutes to the baking time if baking from cold. Garnish with a sprinkle of fresh cilantro for a burst of freshness before serving.