preheat grill to 375-400.
place one piece of salmon on a large sheet of tin foil. lightly season each side with salt, pepper, creole and blackening seasoning. Repeat with other piece.
in a small mixing bowl, whisk together all sauce ingredients.
pour sauce onto each piece of salmon and top with 2-3 lemon slices depending on size.
make a tent with the foil around the salmon and seal all edges (see photo). place on grill, shut cover and "bake" for 14 minutes.
open foil pack and carefully remove salmon and transfer to a plate. Top with parsley. Serve with rice, Cauliflower rice (click here for recipe) or Cauliflower Hash (click here for recipe) or grilled/sauteed vegetables.