In a large skillet add the olive oil, and chicken strip and cook over medium-high heat for about 3 minutes or until chicken is lightly browned and cooked through; stir and flip intermittently. Remove chicken from skillet (keep the oil and cooking juices in the pan) and set aside.
If necessary add a bit more oil, add the onions, and sauté over medium heat for about 5 to 7 minutes, or until they begin to caramelize and soften; stir intermittently.
Add the peppers and sauté for about 5 minutes, or until they begin to soften; stir intermittently.
Return chicken to skillet.
Add the water, fajita-seasoning mix, and cook for about 3 minutes, or until chicken is heated through; stir intermittently. Spoon mixture into Casa Mendosa® tortillas and serve immediately. Then top with your favourite toppings of your choice.