01 - Preheat oven to 400°F. Lightly grease a baking dish large enough to fit cod fillets in a single layer.
02 - Arrange cod fillets in the prepared dish. Drizzle evenly with lemon juice and spread Dijon mustard across the fillets.
03 - Combine breadcrumbs, melted butter, parsley, minced garlic, paprika, salt, and black pepper in a mixing bowl. Stir until the mixture is evenly moistened.
04 - Spoon breadcrumb mixture over each fillet, pressing gently to adhere.
05 - Transfer baking dish to the oven and bake for 18 to 20 minutes, or until fish turns opaque and flakes easily with a fork, and the topping is golden brown.
06 - Serve hot, garnished with lemon wedges for squeezing over the top.