Preheat the oven to 425℉. Lightly spray a baking dish with nonstick spray.
In a small bowl, mix together the mustard, honey and 1 tablespoon of the oil. Place the salmon fillets in the prepared baking dish, then brush the mustard mixture over the salmon.
In a medium bowl, combine the breadcrumbs, pecans, garlic salt and the remaining 1½ tablespoons of oil. Sprinkle this mixture evenly on top of the salmon filets in the baking dish.
Bake the salmon for 10 to 12 minutes, or until the topping is golden brown. Allow the salmon to rest for 5 minutes. Garnish it with the parsley and serve.