01 - Preheat oven to 400°F (200°C). Lightly grease a baking dish large enough to arrange the cod fillets in a single layer.
02 - Place the cod fillets in the prepared baking dish. Drizzle the fillets with lemon juice and evenly spread Dijon mustard over the surface of each fillet.
03 - In a mixing bowl, combine breadcrumbs, melted butter, parsley, paprika, minced garlic, salt, and black pepper. Stir thoroughly to ensure breadcrumbs are moistened and ingredients are distributed evenly.
04 - Spoon the breadcrumb mixture over each cod fillet, pressing gently to help the topping adhere firmly.
05 - Bake for 18 to 20 minutes, or until the cod is opaque, flakes easily with a fork, and the breadcrumb topping is crisp and golden brown.
06 - Serve immediately with lemon wedges for adding fresh citrus at the table.