Ingredients:
Lemon Yogurt - 2 cups, nonfat
Seeded Watermelon - 2 cups, cubed
Fresh Strawberries  - 2 cups, cleaned and hulled
Banana - 1 medium, peeled and sliced

Method:
1. Put the watermelon, strawberries and banana in a blender.
2. Puree until smooth.
3. Now add the yogurt and blend till smooth and frothy.
4. Serve in a chilled glass.