Cook The Chicken. Heat 1 tsp. olive oil in a large skillet over medium heat. Add chicken and cook over medium heat until chicken is cooked through, 8-10 minutes. If there's any liquid left in the pan, feel free to spoon it out and discard it.
Season. Add garlic, ginger, tamari, curry powder and green onion and cook 1 minute longer. (Note: the chicken will not be super saucy since you don't want it dripping out of your lettuce wraps.)
Garnish with cilantro or mint (if desired), then assemble your lettuce wraps.
Assemble Lettuce Wraps. Spoon the cooked chicken into lettuce cups with thinly sliced red pepper, carrots, and cucumber. Drizzle with peanut sauce, to taste. Top with extras, like more fresh herbs, crushed peanuts, etc.
Serve & Store. Enjoy right away. Store leftovers in separate airtight containers in the fridge. (Store lettuce leaves, chicken mixture, and peanut sauce separately for best results.) Chicken mixture will stay fresh 3-4 days.