Portabella Marsala is a vegetarian take on the popular dish traditionally made with wine and mushroom sauce. The name of the dish originates from the particular wine, Marsala, used to create the sauce.Marsala is produced in Sicily, Italy, and is one of the country's most famous wines. Its flavor can range from sweet to dry, and it is used as a dessert wine or aperitif, as well as added to other ingredients for a variety of dishes.