01 - Cook rice vermicelli noodles according to package directions. Rinse thoroughly under cold water, drain well, and set aside.
02 - Julienne the carrot and cucumber, thinly slice the bell pepper and radishes, shred the cabbage, and wash all fresh herbs. Pat vegetables dry.
03 - Whisk together peanut butter, soy sauce, lime juice, rice vinegar, honey, garlic, ginger, sesame oil, and sriracha in a medium bowl. Add warm water gradually to achieve pourable consistency.
04 - Place cooked noodles, carrot, cucumber, bell pepper, radishes, cabbage, bean sprouts, and half of each herb in a large mixing bowl. Toss gently to distribute evenly.
05 - Drizzle half the peanut dressing over the salad mixture. Toss again until all components are lightly coated.
06 - Arrange butter lettuce leaves on individual serving plates. Top with dressed salad mixture. Garnish with remaining fresh herbs and chopped peanuts. Serve with additional dressing on the side.