Combine sour cream, vinegar, milk, sugar, salt and garlic powder. Set aside. Combine remaining ingredients. Toss with dressing. Cover and chill about 2 hours.
Nutritional Information:
754 Calories (kcal); 27g Total Fat; (30% calories from fat); 35g Protein; 99g Carbohydrate; 52mg Cholesterol; 1695mg Sodium