Fideuà is a dish that is similar to paella but made with short, thin noodles instead of rice. It is typically cooked with seafood such as shrimp, mussels, and squid, along with vegetables and a flavorful broth. Fideuà is a popular dish in Barcelona, especially in coastal areas, where fresh seafood is abundant. The noodles absorb the flavors of the broth and the seafood, creating a delicious and satisfying dish.