Preheat your oven to 375 degrees Fahrenheit. Mix together the mustard, parsley, lemon juice, oil, garlic, salt, and pepper in a small bowl.
Place the salmon on a parchment lined baking tray and generously coat the top of the salmon with the herbed mustard mix.
Bake the salmon for 18 to 20 minutes (depending on size and thickness), then slice it into individual portions and serve immediately.
