Season the salmon steaks on both sides with salt and pepper.
Place the steaks skin-side down in a hot pan with the butter. Sear salmon for 5 minutes on each side until cooked.
Preheat the grill on HIGH. Toss the trimmed green asparagus with the melted butter, salt and pepper. Grill the asparagus for 2 minutes on each side until browned.
Divide up the salmon and asparagus. Garnish with lemon slices and fresh dill leaves. Serve!