01 - Set the oven to 400°F and line a baking sheet with parchment paper or grease a shallow baking dish.
02 - Pat cod fillets dry with paper towels, season both sides with salt and black pepper, then arrange on the baking sheet.
03 - Combine panko, parsley, dill, lemon zest, minced garlic, olive oil, and Parmesan cheese if using in a bowl until evenly mixed.
04 - Evenly spoon the breadcrumb mixture over the tops of the fillets, pressing gently to ensure adhesion.
05 - Bake for 15 to 20 minutes until the crust is golden and fish flakes easily with a fork.
06 - Serve immediately alongside lemon wedges.