Paella is a typical Spanish dish and is traditionally cooked in a "paellera" - a round flat pan with two handles - which is then put on the table. It is a typical, rich rice dish from Valencia, located on the east Mediterranean coast of Spain. Even though you can taste this food all over Spain and even world-wide, its true origin is the area of Valencia and Alicante.
There are three widely known types of paella: Valencian paella (Spanish: paella Valenciana), seafood paella (Spanish: paella de marisco) and mixed paella (Spanish: paella mixta).
But paella is very flexible, if you can’t have the exact ingredients, always substitute them for something similar.