Preheat the oven to 350°F (175°C). Line a rimmed baking sheet with aluminum foil and lightly coat the foil with non-stick spray.
Arrange the lemon slices in an even layer in the center of the foil.
Season the salmon filet on both sides with salt and freshly ground black pepper, then place it on top of the lemon slices.
In a small bowl, whisk together the melted butter, honey, minced garlic, dried oregano, and minced fresh thyme (or dried thyme).
Pour the butter mixture evenly over the salmon. Fold up the sides of the foil and seal to create a tight packet.
Bake the sealed packet on the prepared baking sheet until the salmon is cooked through, about 15 minutes (adjust up to 20 minutes for thicker filets).
Carefully open the foil and switch the oven to broil. Broil the salmon 1–3 minutes until the butter mixture thickens into a glaze and the surface is lightly browned; watch closely to avoid burning.
Check that the salmon reaches an internal temperature of 145°F (63°C). Garnish with minced fresh parsley and serve.