02Heat the oil in a large saucepan or kettle over medium heat and add the onions, celery, green pepper and garlic. Cook, stirring, for five minutes. Add the wine, bay leaf and thyme. Cook for one minute. Stir in the tomatoes, pepper flakes, salt and pepper. Simmer for 10 minutes.03Add the fish and mussels, stir and cook over high heat for about three minutes. Add the shrimp and parsley and cook for three more minutes. Remove the bay leaf and serve immediately.