Can I prepare this ahead of time? Yes, assemble the casserole and refrigerate it for up to 24 hours before baking.
Can I make it dairy-free? Substitute butter with oil, and use a plant-based cream and cheese alternative.
How do I prevent the chicken from drying out? Baking uncovered for too long can dry the chicken; check at 25 minutes and cover loosely with foil if needed.
