Prepare The Chicken: Season the chicken breasts with salt and pepper. In a skillet, heat olive oil over medium heat. Add the chicken and cook in the center until golden and no longer pink, about 6-8 minutes per side. Let the chicken rest for a few minutes, then slice it thinly.
Make the Dressing: In a small bowl, whisk together peanut butter, soy sauce, honey, lime juice, grated ginger, garlic, and chilli sauce (if using). Gradually add warm water until the dressing reaches your desired consistency.
Assemble the Salad: In a large bowl, combine the mixed greens, shredded carrots, red cabbage, cucumber, cilantro, and green onions. Toss the salad with the dressing until everything is well coated.
Serve: Divide the salad into serving bowls. Top with sliced chicken, chopped peanuts, and wonton strips. Serve immediately.