Mix remaining ingredients in with banana-flour mixture until smooth. Make sure you don't have any unmixed flour hiding in the edges!
Microwave for about 2 minutes. I can tell mine is done when the bread separates from the sides of the dish. Time will vary depending on size/shape of your dish. My wide-mouth ramekin took 2 minutes, 10 seconds.
Recipe by Modern Martha at http://modernmartha.com/2012/08/microwavable-banana-bread/