01 - Preheat the oven to 400°F. Line a baking sheet with parchment paper or lightly grease a baking dish.
02 - Pat the haddock fillets dry with paper towels and place them in a single layer on the prepared baking sheet.
03 - In a bowl, combine breadcrumbs, Parmesan, parsley, lemon zest, thyme, paprika, salt, and black pepper.
04 - Drizzle the haddock fillets with melted butter, olive oil, and lemon juice.
05 - Press the breadcrumb mixture evenly over the top of each fillet, gently pressing to adhere.
06 - Bake for 15–20 minutes, or until the fish is opaque and flakes easily with a fork and the topping is golden brown.
07 - Serve immediately, garnished with lemon wedges and extra parsley if desired.