Place the rice into a large mug. Lay vegetables on top. Cover the mug with cling film. Using a knife, puncture one or two small holes through the film. This step is important! You don’t want to scald yourself. Microwave on high for 1 minute 15 seconds.
In the meantime, beat the egg and mix in the seasonings. Pour the egg mixture into the mug, and stir with the vegetables and rice.
Cover the mug with cling film again, and microwave for 1 minute 15 seconds to 1 minute 30 seconds. Take the mug out of the microwave, and give everything a good stir. Let the fried rice stand for a minute to finish cooking. Use a fork to fluff up the rice and serve.