It actually works! I made quinoa in the rice cooker, and used veggie broth instead of water. One thing - the quinoa cooks faster than rice does, so I think I'm going to taste it next time and turn it off before the little buzzer goes off. Otherwise, some of it burns a little bit.
I took the Roman Rice and Beans recipe and subbed quinoa for the rice. DELICIOUS! The kids like it also. I have two lunches for next week already, and with the leftover Chinese food from yesterday, I should have four lunches for this week already.