3 lb Red-skinned potatoes 1/2 c Thinly sliced green onions 3/4 ts Garlic salt; divided 1/4 ts Fresh ground black pepper 1 c Plain low-fat yogurt 2 tb Buttermilk 1 c (4 oz) crumbled blue cheese Cut potatoes into one-half-inch pieces. Cook in boiling water to cover 15-20 minutes or until tender; drain. Combine potatoes, onions, one-half teaspoon garlic salt and the pepper. Toss gently to combine. Stir together yogurt, buttermilk, blue cheese and remaining one-quarter teaspoon garlic salt. Add to potatoes; toss gently to coat. Cover and chill at least 2 hours. Serves 10. Nutritional analysis per serving: Calories 166; protein 7 grams; fat 4 grams; carbohydrate 27 grams; calcium 21 milligrams. From Dairy Council Inc. Christie Aspegren, September 93 Round Robin.