The fish cleaned, washed and add salt. Thus stand for 3 hours. In a saucepan put the oil, onions, grated tomatoes, bay leaf and a little hot water. Stew over low heat and add salt. The fish is washed from the salt and put the whole in a saucepan. Pour the prepared sauce, add 3-4 slices of lemon, olives and finely cut parsley. Stew over low heat.