Pixie eats breakfast and supper of home-prepared vegetarian meals including Vegepet supplement and Vegeyeast. The basic recipes are like the ones from your site: a whole grain such as millet, brown rice or barley combined with a protein that is also usually a whole grain (quinoa, lentil or soy flour).
I add extras like green beans (which she helps herself to in the garden in summer anyway) or a smoothie with rice milk, broccoli and carrots, and a fat which is canola oil or nut butter. Pixie has weighed exactly 51# her whole adult life, which is perfect for her size and for keeping her sound. As you can see, she is very athletic! Her vet says she's in fantastic condition.