Spray the inside of a coffee mug with cooking spray. Drop in two eggs and a splash of milk. Use a fork to break up the eggs and whisk the eggs and milk together.
Put it in the microwave for 1 minute. The eggs will begin to rise up over the lip of the cup. Remove the cup and flip the egg with your fork to see if there’s any liquid left to cook. If so, put them back in the microwave, 20 seconds at a time until all the egg is cooked. Season with salt and pepper.