Mix together chili powder, ground cumin, paprika, kosher salt, black pepper, onion powder, garlic powder, and cayenne pepper in a small mixing bowl.
Place sliced boneless skinless chicken breasts into a large bowl. Sprinkle the fajita seasoning mixture on top and toss to coat the chicken in the mixture.
Preheat olive oil over medium high heat in a large skillet.
Add the chicken to the pan (you may have to work in batches depending on the size of your pan) and cook for 3-5 minutes until the chicken is cooked through.
Remove the chicken from the pan to a separate plate.
Add the remaining olive oil to the pan. Stir in sliced medium onion and bell peppers and sauté for 4-5 minutes, stirring frequently.
Add the sliced chicken back to the pan and stir to combine with the onions and peppers.
Squeeze the juice from 1 lime on top.
Serve with tortillas, sour cream, pico de gallo, and guacamole, and enjoy!
Video
Notes
Refrigerate any leftovers in an airtight container for up to 5 days. The nutritional information listed does not include items for serving with the fajitas.