Steak: Cover the dish and put it in the microwave. Cook it on a medium heat (max heat will dry out your steak in no time) for 30-second periods, turning the steak in between. You should only need to do this a few times for the perfect result. Deliciously tender. Vegtables: Spread food out in an even layer, cover with a damp paper towel to help create some steam while the food is heating so it doesn't dry out, and stir every so often to promote even heating, as there are usually hot spots even in microwaves with turntables.
To serve steak, slice against the grain into thin strips. Pack into warmed tortillas, extra cilantro leaves, sour cream, sliced avocado (or your desired fillings), and drizzle over the remaining marinade.