A person could, in theory, just pour cream over cauliflower, drape it with cheese, bake it and be happy with the results. But taking just a few minutes to infuse that cream with garlic and rosemary — or other herbs, or citrus peels, or fresh or dried chiles — creates a side dish that might actually overshadow the main. Once your cauliflower is bathed in the scented cream and sprinkled with cheese, make sure your baking dish is tightly covered with foil for the first part of the baking process, so the cauliflower steams and softens. After that, uncover and let the cauliflower continue to bake until the cheese has melted and crisped up. You can swap out the cauliflower for sliced potatoes, fennel or other vegetables, which would be equally impressive.
