Slice or shred the cooked chicken into bite-sized pieces.
Dice the cucumber, grate the carrots, dice the tomatoes, chop the cilantro, and slice the green onions.
Peel and finely grate the fresh ginger.
In a small bowl, whisk together the powdered peanut butter, almond milk, lime juice, garlic, honey, rice vinegar, soy sauce or tamari, sesame oil, and grated ginger until smooth.
Separate the butter lettuce leaves and arrange them on a serving platter.
Fill each lettuce leaf with shredded chicken, carrots, cucumber, tomatoes, cilantro, and green onions.
Drizzle the peanut sauce over each wrap or serve it on the side for dipping.
Serve the Thai Chicken Lettuce Wraps immediately while the lettuce is crisp and fresh.