1: Marinate the chicken thighs with avocado oil, fajita seasoning, chili powder, lime juice, and salt.
2: Heat a skillet over medium-high heat and sear the chicken until cooked through.
3: In the same skillet, add sliced onions and bell peppers and sauté until tender.
4: Combine the cooked chicken with the veggies in the skillet.
5: Garnish with freshly chopped cilantro before serving.