Cooking chicken fajitas in a cast iron skillet really brings out the flavors and gives the dish a wonderful char that you just can't get with other pans. I learned that preheating the skillet properly before adding the oil is key to getting that perfect sear on the chicken, which locks in moisture and enhances taste. Marinating the chicken with lime juice and a combination of cumin, chili powder, garlic, and oregano adds a bright and smoky depth that really elevates the dish. I recommend marinating for at least 30 minutes, but you can also prepare it the night before for even better flavor infusion. Using bell peppers and white onion not only adds vibrant color but also a nice sweetness that balances the savory chicken. Cooking the veggies just until tender retains some crunch, which adds a great texture contrast. Seasoning the veggies with soy sauce and black pepper at the end brings a subtle umami note that complements the spices on the chicken. For a low-carb meal, serving these fajitas on low-carb tortillas is perfect, but they’re also delicious on their own or wrapped in lettuce leaves for an even lighter option. Overall, this recipe is a fantastic weeknight dinner because it’s quick, simple, and healthy. Plus, using a cast iron skillet means easy cleanup and an even cook. I’ve tried this multiple times for family dinners, and it’s always a hit. It’s perfect for those who want a tasty home-cooked meal without spending hours in the kitchen.