Seafood Au Gratin Recipe - Food.com

Ingredients

• 1 onion, chopped
• 1 green bell pepper, chopped
• 1 cup butter, divided
• 1 cup all-purpose flour, divided
• 1 lb fresh crabmeat
• 4 cups water
• 1 lb fresh shrimp, peeled and deveined
• 1/2 lb small scallop
• 1/2 lb flounder fillets
• 3 cups milk
• 1 cup shredded sharp cheddar cheese
• 1 tablespoon distilled white vinegar
• 1 teaspoon Worcestershire sauce
• 1/2 teaspoon salt
• 1 pinch ground black pepper
• 1 dash hot pepper sauce
• 1/2 cup grated parmesan cheese