Cut the chicken into bite sized pieces or small strips, about three quarters of an inch in size.
In a large bowl, whisk together the coconut aminos, fish sauce, lemongrass, garlic, sugar-free honey, and lime juice until well combined.
Add the chicken to the marinade and toss to coat evenly. Cover and refrigerate for at least 30 minutes or overnight for deeper flavor.
Heat a large skillet over medium heat and add the avocado oil.
Arrange the marinated chicken in a single layer and allow it to cook undisturbed for about 2 minutes to develop color.
Stir occasionally and continue cooking for a total of 7 to 9 minutes, until the chicken is golden and fully cooked through.
Remove from heat and serve as desired.