In 12-inch skillet, heat oil over medium-high heat and cook chicken, stirring occasionally, 8 minutes or until no longer pink.
Remove from skillet; cut into strips.
In same skillet, combine chicken and Cheese Creations Sauce; heat through.
On serving platter, arrange layer of tortilla chips, then 1/2 of the sauce mixture, bell peppers, onion and tomato; repeat, ending with tomato. Garnish, if desired, with chopped fresh cilantro and shredded lettuce.