Frozen broccoli is the product prepared from the fresh, clean, sound stalks or shoots of the broccoli plant (Brassica oleracea (Italica group)) by trimming, washing, blanching, sorting, and properly draining.Broccoli is a cruciferous vegetable rich many nutrients. It is a good source of vitamin C, vitamin K, and vitamin A. These are important for our skin, eyes, and blood. Enjoy it raw as a snack, in salads, or cooked in stir-fries or as a side dish.