I've been making this salad for a few years now, and can't remember where the original came from. I've used many different combinations of grains for this, choosing from bulgar, barley, quinoa, wild rice, brown rice, couscous, wheatberries and speltberries. I basically gather up three of whatever I have on hand, cook them up and mix. Consequently, the preparation time can vary widely. Sometimes I use the poblano I call for, sometimes I use some crushed red pepper flakes instead.