A pie is a baked dish which is usually made of a pastry dough shell that covers or completely contains a filling of various sweet or savoury ingredients. Pies can be either "filled", where a dish is covered by pastry and the filling is placed on top of that, "top-crust," where the filling is placed in a dish and covered with a pastry/potato mash top before baking, or "two-crust," with the filling completely enclosed in the pastry shell. Pies can be a variety of sizes, ranging from bite-size to ones designed for multiple servings.
So-called “pyes” originally appeared in England as early as the 12th Century, but the word “pie” is not attested in the Oxford English Dictionary until the 14th century.
Meat pies with fillings such as steak, cheese, steak and kidney, minced beef or chicken and mushroom are popular in the United Kingdom, Australia and New Zealand as take-away snacks. They are also served with chips as an alternative to fish and chips at British chip shops.
Pot pies with a flaky crust and bottom are also a popular American dish, typically with a filling of meat (particularly beef, chicken or turkey), gravy, and mixed vegetables (potatoes, carrots and peas). Frozen pot pies are often sold in individual serving size.
Fruit pies may be served with a scoop of ice cream, a style known in North America as à la mode. Apple pie is a traditional choice, though any pie with sweet fillings may be served à la mode. This combination, and possibly the name as well, is thought to have been popularized in the mid-1890s in the United States.