01 - Preheat the oven to 400°F. Lightly grease a baking dish with 1 tablespoon olive oil.
02 - Pat the haddock fillets dry with paper towels, arrange in the baking dish, drizzle with remaining 1 tablespoon olive oil, and season lightly with salt and pepper.
03 - In a mixing bowl, combine breadcrumbs, parsley, Parmesan, garlic, melted butter, lemon zest, salt, and black pepper; mix until evenly coated.
04 - Spoon the breadcrumb mixture evenly over the haddock fillets, pressing gently to ensure it adheres.
05 - Bake for 18 to 20 minutes, or until the fish flakes easily with a fork and the topping is golden brown.
06 - Serve immediately with lemon wedges.