1 In 12-inch nonstick skillet heat 2 tablespoons of the oil over medium heat. Add potatoes; cover and cook 12 to 15 minutes stirring occasionally until thoroughly heated (potatoes will not brown). Transfer to bowl; keep warm.
2 In same skillet heat remaining 1 tablespoon oil. Add chicken; cook 5 to 7 minutes, stirring occasionally until no longer pink. Stir in potatoes and tomatoes; cook 2 to 3 minutes longer or until thoroughly heated. Sprinkle evenly with bacon pieces 3 tablespoon of the onions and the cheese. Reduce heat to low; cover and cook 5 to 6 minutes longer or until cheese is melted.
3 Meanwhile in small bowl, stir sour cream and taco seasoning mix until well blended. Serve skillet dinner with sour cream mixture and remaining 1 tablespoon onions.