Semanggi is another special food from East Java. It's usually served on the plate made from banana leaves (pincuk). In Surabaya, the seller is generally an old woman, carried to their back and peddled to whole of the city.
Semanggi consisted of boiled semanggi leaf, bean sprouts, and eat with hot delicious sambal. There are few kinds of sambal for semanggi. In Banyuwangi sambal made from chili, fragrant grass (serai), jack fruit and a little javanese sugar. It's different for another place such as Surabaya which use sambal made of more javanese sugar, petis (black fermented shrimp paste), and chili.
Beside the vegetables, semanggi also eat with kerupuk uli (chips made from the rice) with sauce made from yam (ketela rambat) and peanut.

pic taken from : http://www.sby.pphotels.com/images/sby/semanggi1%20small.jpg