Preheat Oven: Preheat your oven to 400°F (200°C). Line a baking sheet with parchment paper or lightly coat with olive oil.
Prepare the Herb Mixture: In a mixing bowl, combine the finely chopped herbs, panko breadcrumbs, minced garlic, and lemon zest. Add a pinch of salt and pepper. Drizzle in olive oil (or melted butter) and mix until the mixture resembles damp sand.
Season the Salmon: Gently pat the salmon fillets dry with a paper towel to remove excess moisture. Season both sides with salt and pepper. Place the fillets skin-side down on the prepared baking sheet.
Apply the Herb Crust: Brush the top of each fillet with a thin layer of Dijon mustard or olive oil. Gently press the herb mixture onto the salmon, creating a generous and uniform layer.
Bake: Bake for 12–15 minutes, depending on the thickness of the fillets. The crust should be golden brown, and the salmon should flake easily with a fork.
Rest and Serve: Remove the salmon from the oven and let it rest for 2–3 minutes before serving. Serve with lemon wedges and your favorite side dishes.