Do you have a short list of a few of these the two of you are interested in?
A whole grain and a legume would help. Those superfoods on your list are very low in calories.A study of superfoods (vegetarian) rated.
Now the question is, does anyone have any recipes that these particular foods would taste good in? My gf is vegetarian and we are having problems finding a third item to fill a dinner plate constantly.
http://thespeaker.co/superfoods-new-study-lists-ranks-worlds-healthiest-fruits-vegetables/