This recipe is a regular in my house. It is super easy to make with ingredients on hand (I always make sure I have quinoa, black beans, and corn in my house):
http://allrecipes.com/recipe/quinoa-and-black-beans/
I only use one can of black beans as two is too much. Also, I recommend doubling the batch as this makes about three servings, so you won't get a lot of leftovers (and you'll want lefotevers of this). Plus, you can always freeze any extras for a super and quick meal later on in the month.