Paella is the national dish of Spain, and each region has its own specialty. While in college I spent a semester in Toledo, Spain, and learned to cook paella with my host mother. This is a common way of cooking paella in the Castilla-La Mancha region of Spain. I use chicken in my recipe, but pork (or even rabbit) works just as well. You can also omit the shrimp or substitute it for mussels or other types of seafood.