Tiella is a dish in Italian cuisine that is prepared with potato, rice, onion and mussels as primary ingredients. Additional ingredients may be used. Variations of the dish exist, and some may be prepared with other types of seafood. The round earthenware dish in which tiella is traditionally cooked is also referred to as a "tiella". Tiella is part of the cuisine of Apulia in southern Italy. It may also be found in coastal areas of Calabria.
In Gaeta, Lazio, Italy, tiella is a specialty dish of the region prepared in the style of a pocket sandwich, using seafood such as octopus that is stuffed within a torta. Some other Italian dishes also referred to as "tiella" include a casserole and a stew.