01 - Preheat the oven to 400°F. Line a baking sheet with parchment paper or lightly oil it to prevent sticking.
02 - Gently pat the salmon fillets dry with paper towels. Arrange them on the prepared baking sheet, then season evenly with salt and black pepper.
03 - In a small mixing bowl, whisk together the Dijon mustard, honey, whole grain mustard (if utilizing), fresh lemon juice, olive oil, and minced garlic until the mixture is smooth and well combined.
04 - Evenly spoon or brush the prepared honey mustard glaze over the top surface of each salmon fillet.
05 - Bake the salmon in the preheated oven for 12–15 minutes, or until it is just cooked through and flakes easily with a fork. An instant-read thermometer should register an internal temperature of 145°F at the thickest part.
06 - Carefully transfer the cooked salmon to individual plates. Garnish with a sprinkle of fresh chopped parsley and serve immediately with lemon wedges on the side.