We prepare beets in any way convenient for you. I offer an option from the series “I want to quickly and immediately”. Beets cut into thin strips or three on a grater for Korean carrots. Put in a bowl, add 2 tablespoons of water, cover with a lid, put in the microwave. We cook for 3+2 minutes at maximum power (I have 800 W). Next, sprinkle the hot beets with balsamic vinegar, put mustard.