Frozen cauliflower is the product prepared from fresh, clean, sound heads of the cauliflower plant conforming to the characteristics of the species Brassica oleracea L. Unprepared, frozen contains 16 calories per 66 g serving. This serving contains 0.2 g of fat, 1.3 g of protein and 3.1 g of carbohydrate. The latter is 1.5 g sugar and 1.5 g of dietary fiber, the rest is complex carbohydrate.