In a bowl, combine chicken strips with chili powder, cumin, smoked paprika, garlic powder, salt, pepper, and lime juice. Let it marinate for at least 15-20 minutes.
Cook the Chicken:
Heat olive oil in a skillet over medium-high heat.
Add marinated chicken strips and cook until they are browned and cooked through, about 5-7 minutes. Remove from the skillet and set aside.
Sauté Vegetables:
In the same skillet, add a bit more olive oil if needed.
Add sliced onions and bell peppers. Sauté until they are tender-crisp, about 3-5 minutes.
Combine Chicken and Vegetables:
Return the cooked chicken to the skillet with the sautéed vegetables. Toss everything together until well combined and heated through.
Warm Tortillas:
Heat tortillas in a dry skillet or microwave according to package instructions.
Assemble Fajitas:
Spoon the chicken and vegetable mixture onto each tortilla.
Add your favorite toppings such as salsa, low-fat Greek yogurt, shredded lettuce, chopped tomatoes, and cilantro.
Nutritional Information (Approximate, per serving):