Filling desserts are a type of dessert that typically consists of a pastry crust filled with a sweet or savory filling. The most common type of filling dessert is PIE, which is a pastry crust filled with a variety of sweet or savory ingredients. PIE is usually made with a shortcrust pastry, which is a type of pastry made with flour, fat, and water. The filling can be anything from fruit to custard, and the top of the PIE can be either a lattice or a solid crust. Other types of filling desserts include tarts, turnovers, and quiches.