A
Vegan protein powder consisting of pea / rice protein delivers almost the same amino acid profile as whey protein. Even if you're eating a wide variety of beans, I think you should at least supplement this kind of powder once or twice per day.
Here's a really good article on the pea / rice combo:
The Best Protein for a Detoxification Diet
Steve Warshaw - Nutritionist
e. steve@energiefitness.net