Turn half a cauliflower, or even leftover cauliflower, into appetite-soothing low-cal soup in minutes.
Combine all ingredients except milk in a large microwave-safe bowl. Cover, venting one side by turning back plastic wrap or waxed paper, and microwave on high 6 minutes. Stir and continue cooking on high, covered and stirring twice, until cauliflower is very soft, about 15 more minutes. Then continue with Step 2.