Hearty Seafood Casserole Recipe Fishermans Wharf Comfort

Ingredients

• 1 lb (450g) skinless, boneless white fish fillets (cod, haddock, or halibut), cut into 1-inch pieces
• 1 lb (450g) large shrimp, peeled and deveined
• 1/2 lb (225g) sea scallops, patted dry
• 1 tbsp olive oil
• 1/2 tsp salt
• 1/4 tsp black pepper
• 4 tbsp (57g) unsalted butter
• 1 medium yellow onion, finely chopped
• 2 cloves garlic, minced
• 1/4 cup (30g) all-purpose flour
• 3 cups (710ml) whole milk
• 1/2 cup (120ml) dry white wine (such as Sauvignon Blanc or Pinot Grigio)
• 1 tsp Dijon mustard
• 1/4 cup (packed) fresh parsley, chopped
• 1/4 cup (packed) fresh dill, chopped
• 1/4 tsp grated nutmeg
• Salt
• freshly ground black pepper
• 1 cup (100g) panko breadcrumbs
• 4 tbsp (57g) unsalted butter, melted
• 1/4 cup (30g) grated Parmesan cheese
• 1 tbsp fresh parsley, chopped
• 1/2 tsp garlic powder
• Pinch of salt