Preheat oven to 375°F (190°C).
Place a large sheet of foil on a baking sheet and lightly grease it.
Pat the salmon dry with paper towels and place it skin-side down on the foil.
In a small bowl, mix melted butter, garlic, lemon juice, lemon zest, salt, pepper, and herbs.
Pour the butter mixture evenly over the salmon. Top with lemon slices.
Fold the sides of the foil over the salmon, sealing to create a packet.
Bake for 15–18 minutes, or until the salmon flakes easily with a fork.
Carefully open the foil and broil for 2–3 minutes for a golden finish, if desired.
Garnish with chopped parsley and serve hot.