1. Combine chicken and next 9 ingredients in a large zip-top plastic freezer bag. Seal and chill 4 to 24 hours.
2. Cook chicken mixture in hot oil in a large nonstick skillet over medium-high heat, stirring often, 10 minutes or until chicken is done. Serve mixture with warm tortillas and desired toppings.
Note: For testing purposes only, we used McCormick Gourmet Collection Mexican-Style Chili Powder.
Note: Nutritional analysis is per taco with flour tortilla and 1/2 cup chicken mixture (not including toppings).