Traditional Home-Style Vegetarian Stroganov

Although a relatively recent addition to Russian cuisine, this simple, hearty dish is cheap and easy to make. Like many Russian dishes, we don't know much about this wonderful meal's origins definitively.  We do know that it was first mentioned in Elena Molokhovets' popular turn-of-the-century cookbook, A Gift to Young Housewives, as "Beef ala Stroganov, with mustard". …