Luncheon Dish for Fifteen

The entire casserole can be assembled up to 24 hours ahead. Cover tightly with plastic wrap and refrigerate. Add the buttered cracker crumb topping just before baking. If baking from cold, add 10-15 minutes to the baking time and cover with foil for the first 20 minutes to prevent over-browning.

Store leftovers covered in the refrigerator for up to 4 days. Reheat individual portions in the microwave for 2-3 minutes, or reheat the entire dish covered with foil in a 325°F oven for 25-30 minutes until warmed through. The casserole can be frozen for up to 2 months; thaw overnight in the refrigerator before reheating. Note that the texture may be slightly softer after freezing.