Usal/Oosal is Maharastrian dish made of beans such as Matki, Moong or Waal

Waal

River Waal is the main distributary branch of river Rhine flowing to the central Netherlands for about before joining the Meuse near Woudrichem to form the Boven Merwede. It is a major river which serves as the main waterway connecting the Rotterdam harbor and Germany. Nijmegen, Tiel, Zaltbommel...

etc. Generally the beans are soaked in water and allowed to sprout. The sprouted beans are stir fried along with onions, spices and curry leaves in oil. Little water is put to cook the sprouts. It usually has a thick gravy. The use of spices vary according to the sprouts used and according to taste..