"I've been making chicken fajitas on the stove with packaged taco seasoning for years but always had so much clean up afterwards. This was not only better tasting, but also easier to clean up and way more satisfying! Serve with warm tortillas, sour cream, and shredded cheese. Taco sauce optional."
Drizzle 2 tablespoons olive oil over the bottom of a 10x14 glass dish. Add chicken strips.
Combine remaining 2 tablespoons olive oil, garlic granules, chili powder, oregano, and cumin in a small bowl. Rub mixture over the chicken. Add tomatoes, onion, green bell pepper, red bell pepper, and green chiles. Mix thoroughly. Sprinkle with seasoned salt.
Bake in the preheated oven, uncovered, until chicken is no longer pink in the center and the juices run clear, about 30 minutes. An instant-read thermometer inserted into the center should read at least 165 degrees F (74 degrees C).