In a small bowl, combine chili powder, cumin, paprika, garlic powder, salt, and black pepper.
Toss the chicken strips with the spice mixture until evenly coated.
Heat 1 tablespoon of olive oil in a large skillet over medium-high heat.
Add the chicken to the skillet and cook until browned and fully cooked, approximately 5 to 7 minutes.
Remove the chicken from the skillet and set aside.
Add the remaining tablespoon of olive oil to the same skillet.
Add the bell peppers and onions to the skillet and sauté for 5 minutes until tender-crisp.
Return the cooked chicken to the skillet and stir to combine with the vegetables for 1 minute.
Warm the tortillas according to package instructions.
Divide the chicken and vegetable mixture among the tortillas and serve with lime wedges.