It is important to remember that infrared waves affect the exterior of the food. Heat on the outside of the food then spreads inward through conduction The result is that the outside of the food browns. Microwaves penetrate the item and cook it from the inside out, so browning does not take place.
A light shinning in through a glass, or a car window, or a window! Make sure you add color to make it pop :) You could use a flashlight as well, or the light on a cellphone.
