Cauliflower is eaten stir-fried or steamed briefly so it still has bite. It is also eaten raw with baked shrimp paste dip or pickled with spices as a condiment. Most often only the florets are used, although the young leaves and inner stem can be eaten.
I fondly remember my mother making pickled cauliflower as a side dish, using the left over stem. It is sliced very thinly, salted to make them crisp, then the addition of lemon juice to balance the saltiness.
Supermarkets, Asian stores
Cauliflower & coriander