Healthy Waldorf Salad~by Kelsey

I found this recipe on Pinterest.  It is actually really good (even though it is healthy) and very easy.  I used non-fat plain Greek yogurt, and thought I would have to add sugar or honey, but it was actually just fine without it.

Ingredients:

• 4 apples, cubed 
• 3 stalks of celery, chopped
• 1/3 cup walnuts, chopped
• 1/2 cup Greek yogurt
• 1/3 cup raisins