Shepherd’s Pie, or Cottage Pie, is a humble casserole dating back to Europe in the 1700s. Traditionally, lamb is used to make shepherd’s pie, while other red meats make a cottage pie. North Americans usually call this mashed-potato-topped, meat-and-vegetable-dish, a shepherd’s pie, including us. This is the recipe we’ve been using for about a decade, and it took a lot…
