Snapper with vegetables

Polenta 6 cups water cold 1 tablespoon butter, unsalted 1 teaspoon salt 1 each bay leaf * 1 1/2 cups cornmeal Red snapper in brodetto 4 pounds red snapper[...]

6 red snapper fillets , boneless and skinless 2 garlic cloves , crushed 3 ounces olive oil 1/3 lb onion , diced 1/3 lb celery , diced 1/3 lb mushroom ,[...]

6 pounds red snapper fillets or whole fish 24 each oysters 6 each celery stalks chopped 1 each shallots bunch, chopped * 1 tablespoon parsley leaves chopped 2[...]