Storage and Make-Ahead Tips
- Refrigerate Leftovers: Store in an airtight container in the refrigerator for up to 3 days.
- Freeze for Later: Assemble the casserole (without the topping) and freeze for up to 2 months. Add the topping just before baking.
- Reheat: Reheat leftovers in the oven at 350°F (175°C) until warmed through, or microwave individual portions.