The reason mincemeat is called meat is because that’s exactly what it used to be: most often mutton, but also beef, rabbit, pork or game. Mince pies were first served in the early middle ages, and the pies were quite sizeable, filled with a mixture of finely minced meat, chopped up fruit and a preserving liquid. Mincemeat originally came about as a good way of preserving meat, without salting, curing, smoking or drying it.