Variations & Tips
You can tuck plenty of small changes into this simple casserole without losing its old-fashioned charm. For a little extra flavor, stir 1/2 teaspoon of garlic powder, onion powder, or a pinch of black pepper into the warm cream before adding the cheese. A light dusting of paprika or dried parsley over the top before baking gives it that classic church-supper look. If you prefer a different cheese, try half cheddar and half Monterey Jack, Colby, or Swiss; just keep the total amount the same so the texture stays creamy. For a smokier version, sprinkle 2 tablespoons of crumbled cooked bacon over the cauliflower before you pour on the sauce. If you need it extra low in lactose, you can use lactose-free heavy cream and be sure your cheese is labeled lactose-free. To make the dish ahead, assemble it completely, cover tightly, and refrigerate for up to 24 hours; add 5 to 10 minutes to the baking time if you’re starting from cold. For food safety, always keep the cream and cheese refrigerated until you’re ready to cook, and don’t leave the baked casserole at room temperature for more than 2 hours. If you’re reheating leftovers, cover the dish with foil and warm it in a 325°F (165°C) oven until steaming hot in the center (165°F if you check with a thermometer). Leftovers keep well in the refrigerator for 3 to 4 days and can be reheated in small portions in the microwave, pausing to stir so they heat evenly without scorching.
