1.Heat 1 Tablespoon Of The Oil In Large Skillet On Medium-High Heat. Add Chicken; Cook And Stir 3 Minutes Or Until Lightly Browned. Remove From Skillet. 2.Heat Remaining 1 Tablespoon Oil In Same Skillet. Add Onion And Bell Pepper; Cook And Stir 3 To 5 Minutes. Return Chicken To Skillet. Add Water And Seasoning Mix; Cook And Stir 3 Minutes Or Until Heated Through. 3.Spoon Into Warm Tortillas. Serve With Assorted Toppings, If Desired.