Prep Time 15 minutes mins
Cook Time 30 minutes mins
Total Time 45 minutes mins
Make-Ahead: Assemble the full casserole up to 24 hours in advance, cover tightly with plastic wrap, and refrigerate. Bake straight from the fridge, adding 10 minutes to the bake time. Storage: Store leftovers covered in the refrigerator for up to 4 days. Reheat: Warm in the oven at 325°F covered with foil for 15-20 minutes. Finish under the broiler for 2 minutes to re-crisp the topping. Freeze: Freeze the filling only (without cracker topping) for up to 2 months. Thaw overnight, top with fresh cracker mixture, and bake as directed. Variations: Add 1 cup of cooked broccoli florets or frozen peas to the filling. For a spicy version, add 1 tsp hot sauce or 1/4 tsp cayenne to the filling mixture.