In a large bowl or ziplock bag, combine 1 tablespoons oil, lime juice, and seasonings; add the chicken. Turn to coat; cover. Refrigerate for 1 to 4 hours.
Heat 1 tablespoon olive oil in a large cast-iron or heavy skillet, on medium-high heat. Drain chicken, discarding marinade. Add chicken; cook for 5-8 minutes on each side. Remove from skillet.
In the same skillet add remaining olive oil, onion, and bell pepper; cook and stir until tender.
Add cooked chicken to pan and combine.
Fill warm tortillas with chicken, peppers, and onion. Top with your favorite toppings.
Video
Notes
Serve with warm flour tortillas and a variety of toppings and let your guests make their own dream tacos.