I found this in a book that my mama gave to me (Famous Brand Name Recipes) and I love it! I'm a soup addict and the only meat that I eat is seafood so it works out great for me. Hope you enjoy! Microwave instructions follow.
Cook onion, green pepper, mushrooms and garlic in margarine in large saucepan or Dutch oven over medium-high heat until tender crisp.
Stir in tomatoes and juice, broth, red pepper, thyme, and basil. Bring to a boil. Reduce heat; simmer uncovered 10-15 minutes.
Stir in okra, fish and shrimp; simmer until fish flakes with fork, 5-8 minutes. Serve rice on top of gumbo.
Microwave Directions: Combine onion, green pepper, mushrooms, garlic and margarine in deep 2 to 3 quart microwave safe baking dish. Cover and cook on HIGH 4 minutes; stir after 2 minutes. Stir in tomatoes and juice, broth, red pepper, thyme and basil. Cover and cook on HIGH 10 minutes; stir. Reduce setting to MEDIUM and cook, covered, 10-12 minutes. Stir in okra, fish and shrimp; cook, covered, on HIGH 5 minutes. Let stand 5 minutes. Serve rice on top of gumbo.