Preheat oven to 375 degrees. Brush a baking pans with olive oil. Place salmon in center of pan of pan. Dust with salt and pepper
In a small bowl mix Dijon, honey (and red pepper if using it). Brush evenly over top of salmon.
With a spoon carefully spread chopped nuts over salmon, gently pressing to stick.
Please in center of oven and bake 15 minutes or until center is barely cooked through. It will continue to cook a couple of minutes after removing it from the oven. Let it rest 5 minutes before serving.