Begin by preheating your oven to 350 degrees F (175 degrees C), which will ensure a gentle, even cooking environment for your salmon. While the oven warms, you can move on to preparing your baking dish by lightly greasing it with a bit of butter or oil to prevent sticking.

Now, take your salmon fillets and arrange them in the prepared baking dish. It's best if they're placed skin-side down, which will allow the top of the salmon to beautifully brown and crisp up a bit in the oven.

In a small mixing bowl, whisk together the melted butter, the zest from your lemon, and its juice. This mixture will infuse the salmon with a bright, citrusy flavor that pairs perfectly with the fish. Drizzle this lemon-butter mix over the salmon fillets, ensuring each piece is well-coated.

Sprinkle the fresh dill over the salmon. The dill adds a delicate, herby freshness that complements the lemon. Season each fillet with salt and freshly ground black pepper to taste. These seasonings are simple, but they will enhance the natural flavors of the salmon without overpowering them.

Once your salmon is seasoned, you can place it in the preheated oven. If you prefer, you can cover the dish with aluminum foil for a more steamed effect, or leave it uncovered for a slightly drier, firmer texture. Bake the salmon for about 15-20 minutes, or until the fish flakes easily with a fork. The exact time may vary depending on the thickness of your fillets, so it's always good to check for doneness towards the shorter end of the time range.

When your salmon is cooked through, remove it from the oven and let it rest for a couple of minutes. This brief resting period allows the juices to redistribute, ensuring each bite is moist and flavorful.

Serve the baked salmon with additional lemon slices for an extra pop of flavor and a beautiful presentation. The lemon not only adds to the aesthetic but also provides a zesty kick for those who desire a more pronounced lemon taste with their meal.