I think one of the best summer treats is a freshly made smoothie. Today when we came home from the park we made this one:
Strawberry Orange Banana Smoothie
Milk (probably about 3/4 cup or so)
2 spoonfuls orange juice concentrate
1 cup spinach (loosely measured)
1/2 frozen banana
10 or so frozen strawberries
Blend milk, concentrate, oranges, and spinach until smooth. With blender running, add banana and strawberries one at a time. I added strawberries until the smoothie just started to turn pink from green.
The boys declared it "AWESOME!"