Mussels (Mexilhão): * Rinse the frozen mussels under cool running water. The shells should close. * Place mussels that do not close in a bowl with cold water and agitate them to make the shell close. *Discard the shells that do not close because they can be spoiled and cause intoxication. * In a large saucepan, place the good mussels with 1/8 cup of water. * Cook them about 10 to 15 minutes or until the shells open wide apart and meat come loose. * Use a fork to remove the meat from shells. Discard shells, reserve the meat. * Combine in blender diced tomatoes, onions, cilantro, minced garlic and salt. * Make a coarse purée. * In a large pan, heat the olive oil and pour the coarse purée. * Add the fresh fish and Squid. Cook for about 10 minutes. * Then,