Cauliflower is a versatile cruciferous vegetable with a dense, edible white head surrounded by green leaves. It is rich in vitamins C, K, and B6, fiber, and antioxidants, making it a nutritious addition to meals. Cauliflower can be steamed, roasted, mashed, or used as a low-carb substitute for rice or pizza crust. Its mild flavor makes it adaptable to various cuisines and cooking styles.