Green onion, pepper and onion, cleaned and cut into small pieces. Similarly cut celery and potatoes. Pour the chopped vegetables in a saucepan and sauté briefly in a little butter. Then immediately pour the vegetables in boiling water and cook for about 10 minutes. Peel tomatoes and cut into cubes. When the vegetables are soft add chopped tomato. The fish is boiled to steam. Boiled fish is cleaned of skin and boned. Finally, vegetables, fish and parsley mix and Strain in large pieces.