Step 1

Thaw fish and shrimp, if frozen. Rinse fish and shrimp; pat dry with paper towels. Cut fish into 1-1/2-inch pieces. Cut shrimp in half lengthwise. Cover and chill fish and shrimp until needed.

Step 2

In large saucepan, cook onion, celery, and garlic in hot oil until tender. Carefully stir in 1 cup broth and wine. Bring to boiling; reduce heat. Simmer, uncovered, for 5 minutes. Stir in tomatoes, tomato sauce, oregano, salt, and pepper. Return to boiling; reduce heat. Cover and simmer for 5 minutes.

Step 3

Gently stir in fish and shrimp. Return just to boiling; reduce heat to low. Cover and simmer for 3 to 5 minutes or until fish flakes easily with a fork and shrimp are opaque. Sprinkle with parsley.