Which smoothie flavor is NOT listed?

In the context of the smoothie flavors presented, lemon is typically not recognized as a common or traditional smoothie flavor compared to the others listed. Strawberry, mango, and peach are popular choices in smoothie recipes, often associated with their sweet and fruity profiles that blend well with various ingredients. Lemon, while it can add a refreshing zing or tartness in some drinks, is not usually classified as a standalone smoothie flavor. Thus, it stands out as the flavor that is least likely to be featured in a typical smoothie menu.