Cut chicken into approx. 2" strips and 1/4"wide.
Ready marinade. (I use powered fajita mix and mix according to package directions)
Place chicken strips and marinade into sturdy plastic bag or sealable container.
Let chicken soak in marinade at least 2 hours, but a day or 2 works better.
Chop lettuce, bell pepper, and onions.
Cook together in a skillet the chicken, bell peppers, and onions for 10-15 min.
For less clean up you can seal chicken, onion, and bell pepper in aluminum foil pouch and cook over hot coals of a campfire or charcoal and cook for 15-20 minutes for indivdual portions or 25-30 for group portions.
Allow everyone to make there own fajitas by adding ingredents of their chioce to a flour tortillas and enjoy.