Cut the chicken into thin strips, cutting against the grain (this will make the chicken more tender). Add all of the marinade ingredients to a large bowl and whisk together. Add the chicken strips to the bowl and mix around so that all of the chicken is covered in marinade. Cover and refrigerate for about 3 hours.
2 ½ lbs boneless chicken breast, ½ cup olive oil, ⅓ cup fresh mandarin orange juice*, ⅓ cup red salsa (your favorite kind), 1 ½ teaspoon sea salt, 2 teaspoon minced garlic, 1 teaspoon cumin, 1 teaspoon chili powder, 1 teaspoon smoked paprika, ¼ teaspoon cayenne
Preheat oven to 425° F. Spray a baking sheet with cooking spray. Cut onion and bell peppers into strips (and then in half if you like them smaller for small tacos). Spread over the baking sheet evenly.
3 bell peppers (yellow, orange, red), 1 large yellow onion
Remove chicken from fridge and evenly lay out the chicken strips over the top of the bell peppers. If you spread a tiny bit of marinade over the top as well this will add some good flavor! Make sure that there aren't any strips of chicken on top of each other--you'll want them to be spread out in a thin layer.
Bake for about 25 minutes--maybe a few more minutes, maybe a little less. Keep an eye on it! Because the chicken is so thin, it is easy to overcook--and there's nothing worse than overcooked chicken! But don't worry, the marinade will help to keep the chicken moist. When pulling it out of the oven, carefully drain a little bit of the excess fluid into the sink. You don't need to get rid of all of it, and you don't want to dump your meal into the sink--this will just allow the lime juice to add flavor, rather than be diluted by all of the juices left from cooking.
Squeeze lime juice (1-2 limes, depending on your preference and the size of the limes) over the top. Spread cilantro over the top and toss around so that everything is evenly coated.
1-2 limes, 2 tablespoon fresh cilantro, chopped
Heat up some corn (or flour) tortillas to put together the tacos, and top with your favorite ingredients. Add some rice and beans on the side if you'd like! These chicken and veggies also go great in quesadillas. Enjoy!
16 corn tortillas