Add the chopped chicken, onion, and bell peppers to a large mixing bowl along with the avocado oil, chili powder and sea salt. Use your hands to toss everything together until it is all well-coated in oil and seasoning.

Transfer everything to a large zip lock bag and refrigerate for at least 1 hour, up to 24.

When you’re ready to cook, preheat the oven to 400 degrees F. Spread the fajita mixture over a large baking sheet into an even layer.

Bake in the preheated oven for 25 to 30 minutes, or until the chicken is cooked through and has a nice brown crisp on it.

Serve chicken fajitas with tortillas or use it in burritos or burrito bowls.