In a small bowl, whisk together the soy sauce, honey, miso, olive oil, garlic and lime juice and zest. Pour 3/4 of the marinade into a shallow dish and place the salmon skin side up. Marinate for 15-20 minutes.
Meanwhile, make the cucumber salad. Combine all ingredients in a large bowl. Taste for salt and add more as needed.
To cook the salmon, preheat the broiler and place an oven rack 6 inches below the heating element.
Place the salmon filets skin side down on a broil pan or foil lined baking sheet and cook for 8-10 minutes until no longer opaque and slightly blackened on top. (see note for airfryer instructions)
Brush the remaining marinade over the cooked salmon. Serve fresh with the cucumber salad and a side of black rice if desired.
Notes
Air Fryer Instruction: Preheat the airfryer to 400° F. Place the salmon filets in the basket and airfry for 5 minutes then spoon over some of the remaining marinade on top of each filet. Airfry for another 2-4 minutes or until cooked to your liking.