Heat up the grill then season the salmon with the habanero salt. Place the salmon on a grilling rack so fish doesn't stick to the grill. Place the rack with fish directly on grill and cook for about 10 minutes.
Right before salmon is done, spread the horseradish sauce over salmon and leave on grill for another minute.
Prepare a quick salad by tossing the spinach, red onions, nectarines, olive oil, vinegar in a bowl and add a pinch of salt and pepper.