Cauliflower

"Cauliflower is rich in vitamin C- one cup has almost 100% of the
daily allowance. Additionally, this vegetable is a great source of
folate and fiber, which helps aid digestion and may prevent some
cancers. Cauliflower is also naturally low in calories and contains
a fair amount of protein.
Cauliflower, along with other healthy powerhouses like broccoli,
kale, and cabbage, is part of the cruciferous family and thrives in
cold winter soil. Look for creamy white, unblemished heads with tight
florets and fresh looking leaves. In season, cauliflower can also be
found with bright orange or purple florets."

-Everday Foods Magazine March 2010