The term 'Little Pies' can refer to two different types of food: tarts and patties. Tarts are small, open-faced pies with a pastry crust and a sweet or savory filling. They are usually served as a dessert or snack. Patties are small, round pies with a pastry crust and a savory filling. They are usually served as an appetizer or side dish. Both tarts and patties are popular dishes in many cultures around the world.