Watermelon is such a thirst-quenching, juicy fruit. Its inclusion in any smoothie will make it sweet but watery and oh-so refreshing. As amazing as that is on a hot summer day, sometimes it’s better to have a thicker smoothie that will allow you to savor the flavor. Why not make your watermelon shake a high-protein delight? This recipe combines the sweet lightness of watermelon with some heavier ingredients that really help to pan out the taste and add some depth. For an even more fulfilling s