Ingredients
2-1/2 cups plain nonfat yogurt
1/3 cup sour cream
1/3 cup mayonnaise
2-1/2 teaspoons lemon zest
1/3 cup lemon juice
1/2 teaspoon salt
1/2 teaspoon pepper
5 granny smith apples, chopped
3 red delicious apples, chopped
5 ribs celery, chopped
2-1/2 cups seedless grapes
1/4 cup walnuts
2 heads romaine
Preparation
Mix first 7 ingredients until smooth in a large bowl. Add apples, celery, grapes and walnuts and toss to coat.
Serve on romaine leaves.
