Mechado

1 lb. salted salmon5 large ripe peeled tomatoes1 medium dry onion, finely chopped1 bunch green onions, thinly sliced including green tops Soak salmon in cold water for 3 hours. Remove skin and bones and shred finely. Mash tomatoes to a pulp. Combine all ingredients and chill. Just before serving add several cubes of crushed ice.