Combine salad ingredients in a large mixing bowl: cooked shredded chicken, napa cabbage, shredded carrots, and thinly sliced red onion.

Add fresh mint and cilantro leaves into the salad bowl and gently fold them in.

In a separate bowl, whisk together lime juice, fish sauce, rice vinegar, honey or sugar, minced garlic, and optional red chili to create the dressing.

Pour the dressing over the salad mixture and toss thoroughly to coat each ingredient.

Transfer salad to a serving dish, sprinkle chopped roasted unsalted peanuts on top, and serve immediately.