Preheat an oven to 400F. Pat the cod pieces dry with a paper towel, then season on all sides with Kosher salt and black pepper. Make the tartar sauce.
In a large bowl, combine grated Parmesan, panko breadcrumbs, chopped parsley, and lemon zest, then stir to thoroughly mix.
In a small bowl, whisk together olive oil, chopped parsley, cloves grated garlic, honey, and Kosher salt. Pour this on top of the salmon. Cover tightly with aluminum foil.
Press each piece of cod firmly into the parmesan topping to coat on one side. Heat oil over medium-high heat in a large skillet. Reduce the heat to medium, then cook until the fish begins to firm up around the bottom.
Transfer to the preheated oven and cook until the fish is fully cooked and the topping has turned golden brown and crispy. Transfer to a serving plate with a fish spatula. Sprinkle with a pinch of flaky sea salt, then serve immediately with capers, tartar sauce, and lemon wedges!