Heat broiler. Wisk together the soy sauce, ginger, and sesame oil. Set a cast iron (or other broiler proof pan) on a burner set to high. Once he pan is hot, add the salmon filets. Immediately pour the soy sauce mixture over top. Transfer to the boiler; broil for 2 minutes or until the salmon is cooked.
In a very large bowl, combine the shredded cabbage, cucumber, carrot, bean sprouts, snow peas, cashews, cilantro, and green onions.
In a small dish, mix together the yogurt, sriracha, and olive oil. Use a fork to separate the salmon into large flakes. Add salmon and dressing to the salad; mix well.