In a small bowl, whisk together the peanut butter, coconut aminos, lime juice, and toasted sesame oil until the mixture is smooth and creamy.
Heat a large skillet over medium-high heat and add the ground chicken, using a wooden spoon to break it into small crumbles as it cooks.
Season the chicken with the sea salt and black pepper, and continue cooking until the meat is thoroughly browned and no longer pink.
Add the minced garlic, grated ginger, diced red bell pepper, and diced water chestnuts to the skillet, sautéing for about 3 minutes until the vegetables are tender-crisp.
Pour the prepared peanut sauce over the chicken and vegetable mixture, stirring constantly for 1-2 minutes until the sauce has thickened and coated everything evenly.
Remove the skillet from the heat and fold in the thinly sliced green onions for a pop of color and flavor.
Carefully spoon the warm ginger-chicken mixture into the center of each butter lettuce leaf and serve immediately while the wraps are fresh.