Cheese Apple Salad(Waldorf Salad With Cheese)  
["1 tsp. fresh lemon juice", "1/4 tsp. salt", "3/4 c. dairy sour cream", "2 medium tart apples", "1/2 c. diced Swiss cheese", "1/2 c. shredded Cheddar cheese", "1/2 c. chopped celery", "1/3 c. halved, seeded red grapes", "1/4 c. coarsely chopped walnuts", "salad greens"]
["Blend lemon juice and salt into sour cream.", "Chill.", "Cut unpared apples into thin slices; sprinkle with additional lemon juice.", "(For a more colorful salad, use a combination of red and green apples.)", "Add Swiss and Cheddar cheese, celery, grapes and walnuts; toss together.", "Just before serving, fold in the sour cream to blend.", "Serve on salad greens, garnished with apple slices and grapes.", "Makes 4 servings."]
["lemon juice", "salt", "sour cream", "tart apples", "Swiss cheese", "Cheddar cheese", "celery", "walnuts", "salad greens"]