1 Brussels Sprouts Feifei Cui-Paoluzzo // Getty Images 2 grams of protein in ½-cup These little green guys get a bad rap in the taste department—especially the frozen variety—but they’re actually nutritional superstars. In addition to protein, brussels sprouts pack hefty doses of potassium and vitamin K. 2 Broccoli Helen Camacaro // Getty Images 2 grams of protein in ½-cup (cooked) Broccoli’s not only an awesome source of fiber, its protein content is surprising, too (for a veggie anyway). And you can’t go wrong with a vegetable that’s been proven to deliver cancer-fighting compounds like sulforaphane. Advertisement - Continue Reading Below 3 Avocado AleksandarGeorgiev // Getty Images 2 grams of protein in ½ avocado This fruit is creamy, dreamy, and super filling, thanks to its bend of monounsaturated fatty acids and a bit of protein. For a new spin on everyone’s favorite guacamole ingredient, you can even make it into a smoothie.…