Prepare this traditional rich, hearty Irish Stew recipe on the stovetop or in the slow cooker for a flavorful comfort food dinner! Perfect for a St. Patrick's Day celebration or for a regular Sunday supper, the classic combination of lamb or beef with vegetables and potatoes in a Guinness or red wine sauce is always a crowd-pleasing dish. Add a crusty loaf of bread, Irish soda bread, cornbread, or biscuits for a simple and satisfying meal.