01 - Set the oven to 400°F and prepare a baking sheet by lining it with parchment paper or lightly greasing a baking dish.
02 - Pat the cod fillets dry with paper towels. Season both sides evenly with salt and freshly ground black pepper, then arrange them on the baking sheet.
03 - In a mixing bowl, stir together panko breadcrumbs, parsley, dill, lemon zest, minced garlic, olive oil, and Parmesan cheese if using until fully incorporated.
04 - Evenly spoon the panko mixture over the top of each cod fillet, pressing gently to ensure it adheres well.
05 - Place the prepared fillets in the preheated oven and bake for 15 to 20 minutes until the crust is golden and the fish flakes easily with a fork.
06 - Serve immediately accompanied by fresh lemon wedges.