Cacciucco is a traditional Tuscan fish stew that is made with a variety of seafood, such as fish, shellfish, and squid. The stew is typically flavored with tomatoes, garlic, onions, and herbs. It is simmered until the flavors meld together and the seafood is cooked through. Cacciucco is a hearty and flavorful dish that is often served with crusty bread to soak up the delicious broth.