Apple Cranberry Salad

I don't know about you but I have been having trouble finding decent lettuce...apparently Mother Nature doesn't want me to have decent salads this time of year.  Here is a neat spin that doesn't feature lettuce...just kind of puts it in the background.

1/4 C. real mayonnaise
1/4 C. sour cream
1 tbsp. sugar
3 apples; preferably 2 red and 1 green, chopped
1/2 C. chopped walnuts
1/4 C. dried cranberries
1 stalk celery, thinly sliced
6 lettuce leaves

Mix mayo, sour cream, and sugar in a medium bowl.  Stir in all remaining ingredients except for the lettuce.  Refrigerate 2 hours.  Serve over lettuce.