At the moment, my favorite smoothie recipe is:

1 cup of water
5–6 frozen strawberries
1 large frozen banana
1 cup of frozen spinach
½ cup of non-fat Greek yogurt
3 tablespoons of peanut butter
½ tablespoon of cinnamon
1 teaspoon of vanilla extract

I like my smoothie on the thicker side, like that of soft serve ice cream, so I add water to the blender as I go.

Are there any smoothie recipes that you like that are more adventurous?