Place the chicken thighs in the bottom of the slow cooker.
Pour the salsa verde over the chicken, then add the sliced peppers, diced onion, cumin, salt, and black pepper.
Cover and cook on low for 6 hours until the chicken is very tender.
Shred the chicken directly in the slow cooker using two forks and stir it into the sauce and vegetables.
While the chicken finishes cooking, warm the cauliflower rice in a skillet over medium heat for 5 minutes or microwave it until hot.
Spoon the cauliflower rice into bowls, top with the chicken mixture, and finish with chopped cilantro and a squeeze of lime.