Step 1

Combine tomatoes, bell pepper, onion, celery, seafood stock, tomato paste, wine, garlic, Italian seasoning, sugar, bay leaf, and crushed red pepper flakes in a large slow cooker.

Step 2

Cover and cook on LOW for 6-8 hours or on HIGH for 3-4 hours (or until vegetables are tender).

Step 3

Turn the slow cooker to HIGH heat. Stir in the shrimp, fish, crabmeat and clams. Cover and cook on HIGH for 20-30 more minutes (stirring twice), or until shrimp is opaque and fish flakes easily with a fork. Remove bay leaf.

Step 4

Just before serving, stir in basil and parsley and season with salt and pepper, to taste.