Apple & Celery Salad

My kids love apples but please don't tell them this is called "salad"

Dressing:
1/2 cup mayo
3 T. plain yogurt
2 T. sugar
2 t. grated lemon peel

Salad:
2 large granny smith apples, cut into 8 wedges then cut crosswise into bite-size pieces (about 4 cups)

2 large gala, cut same as above.

1 T fresh lemon juice

6 medium stalks celery with leaves

3/4 cup chopped walnuts toasted.

To toast walnuts, sprinkle in ungreased heavy skilled. Cook over medium heat 5-7 minutes, stirring frequently until walnuts begin to brown, then stirring constantly until light brown. Set aside.

In a small bowl, mix dressing ingredients until blended. Refrigerate until serving time;

Place apples in large bowl. Sprinkle with lemon juice; toss until coated;

Remove leaves from celery; chop leaves into 1/2-inch pieces to measure 1/2 cup;

Cut celery stalks diagonally into 1/4 to 1/2 inch slices to measure 2 cups. Add to bowl with applles. Refrigerate until serving time.

Just before serving, toss apples and celery; Add dressing, toss until coated; Sprinkle with walnuts.