Whisking all the marinade ingredients together. Place sliced chicken in a bag, then pour the marinade on top. Seal the bag and agitate to coat chicken in marinade. Marinate for at least 6 hours - overnight, or freeze it.
2 tablespoon canola oil, 3 tablespoon brown sugar, 2 tablespoon orange juice, 2 tablespoon lime juice, 2 tablespoon soy sauce, 1 tablespoon dijon mustard, 1 tablespoon chili powder, 1½ teaspoon ground cumin, 1 teaspoon garlic powder, 1 teaspoon onion powder, 1 teaspoon salt, ½ teaspoon smoked paprika, ½ teaspoon chipotle powder, ½ teaspoon dried Mexican oregano, ¼ teaspoon pepper, 2 teaspoon liquid smoke, 4 boneless skinless chicken breasts (about 2 lbs)
Once marinated, drain chicken in a strainer, allowing to drain thoroughly.
While chicken is draining, add ½ tablespoon of oil to a cast iron skillet and heat over high heat until very hot. Add the onions, bell peppers, salt, and pepper to the skillet and cook for 5-7 minutes. Once tender and charred, remove from skillet.
3 bell peppers, 1 yellow onion, ½ teaspoon salt, ¼ teaspoon pepper, 2½ tablespoon olive oil
Add 1 tablespoon of oil to the hot skillet and allow to get hot. Still over high heat, add half of the drained chicken and sear, stirring occasionally, until cooked through, about 5 minutes. Remove the meat from the skillet and repeat with second half of chicken.
2 tablespoon canola oil
Add the veggies back into the skillet with the chicken and toss with tongs. Then serve with warm tortillas and toppings.
corn or flour tortillas, shredded cheese, avocado, salsa or pico de gallo, fresh cilantro, fresh lime juice, sour cream, shredded lettuce