These One Pan Baked Fajitas are a quick and easy weeknight dinner option that is packed with flavor. The fajitas are made with tender strips of chicken or beef, colorful bell peppers, and onions, all seasoned with a homemade fajita seasoning blend. Everything is cooked together on a sheet pan, making cleanup a breeze. Serve the fajitas with warm tortillas, guacamole, and salsa for a complete and satisfying meal.