The term "patty shell" refers to a small, pastry-based container used for filling and serving. However, there are a few different words that can be used to describe this type of vessel. For example, "tartlet" is another common term that can be used to describe a patty shell. A "vol-au-vent" is another similar option, referring to a small, hollow pastry case. "Croustade" is yet another option, often used to describe a cup-shaped pastry that is filled with a savory or sweet filling. Other options might include "phyllo cup," "crustini," or "mini-pie shell." No matter what you call them, these small pastry shells are a versatile and delicious option for all kinds of recipes!