We have always cooked our eggth on the stove in a non-stick skillet. Omelets, scrambled, fried, etc. Recently, not wanting to mess up the skillet for just one egg, I remembered that one of my college roommates used to cook eggs in the microwave. She'd crack an egg in a coffee mug and zap it, stir it up, and eat it. It turned out so good that now I prefer them this way.
Step 1: One tsp of melted butter or olive oil
Step 2: Crack egg into bowl
Step 3: add feta (add Italian spices if you want)
Step 4: mix all
Step 5: microwave for approx. 1 min (give or take)
You will need to scrub your bowl a bit before placing it into the dishwasher, even with the butter or olive oil. Also, if you leave the egg in the bowl or mug, rather than plopping out onto a plate like I did for the pictures, it will stay hot for a long time.