| Cottage Pie |
The term cottage pie is known to have been in use in 1791,[1][2] when the potato was being introduced as an edible crop affordable for the poor (cf. "cottage" meaning a modest dwelling for rural workers).
In early cookery books, the dish was a means of using leftover roasted meat of any kind, and the pie dish was lined with mashed potato as well as having a mashed potato crust on top.[3][4]
The term "shepherd's pie" did not appear until the 1870s,[2] and since then it has been used synonymously with "cottage pie", regardless of whether the principal ingredient was beef or mutton.[2][3][4][5][6][7][8] There is now a popular tendency for "shepherd's pie" to be used when the meat is mutton or lamb,[9] with the suggested origin being that shepherds are concerned with sheep[10] and not cattle.[11][12] This may, however, be an example of folk etymology.