Bitter Gourd and Green Mango Gassi is a tangy and spicy South Indian curry made with bitter gourd, green mango, and coconut. The bitterness of the gourd is balanced by the sourness of the mango, resulting in a flavorful and refreshing dish. The curry is cooked in a coconut-based gravy, which adds richness and creaminess to the dish. It is best served with steamed rice or roti.