In a large bowl, combine the mixed salad greens, shredded chicken, carrots, bell pepper, cucumber, cilantro, and green onions. Toss gently to combine.
In a separate bowl, whisk together the peanut butter, soy sauce, lime juice, honey, sesame oil, ginger, and garlic. Add water a tablespoon at a time until the dressing reaches your desired consistency.
Drizzle the dressing over the salad and toss until everything is evenly coated.
If using, sprinkle chopped peanuts on top for added crunch.
Serve immediately or chill in the refrigerator for 15-30 minutes to let the flavors meld before serving.