Preheat the grill to medium heat.
In a small bowl, whisk together the hoisin sauce, soy sauce, honey, and rice vinegar.
Brush the salmon fillets with the hoisin glaze.
Grill the salmon for 4-5 minutes per side, or until cooked to your desired level of doneness.
In a large bowl, combine the mixed salad greens, sliced cucumber, cherry tomatoes, red onion, and cilantro.
Drizzle the salad with some of the remaining hoisin glaze and toss to coat.
Divide the salad among 4 plates and top each plate with a grilled salmon fillet.
Sprinkle the sesame seeds over the top of each salad.
Serve the hoisin glazed grilled salmon salad immediately.