Tips: Any combination of salad greens will work, but we used prepackaged greens labeled "spring mix." Toast pine nuts on a baking sheet at 350º for 5 minutes. They burn quickly, so watch them. Look for mirin in the Asian section of your grocery store.
Combine first 5 ingredients in a large bowl. Combine soy sauce and remaining ingredients in a microwave-safe bowl. Microwave at HIGH 90 seconds, and stir well. Pour dressing over salad, tossing gently to coat.