Peel the beets and grate. Usually I grate the beetroots by hand but you can use a food processor. Cut the beets big pieces, pulse carefully in the food processor until the beets are shredded.
For the Tahini Dressing in a medium bowl mix tahini, juice of lemon, cold water, salt, garlic and chilli.
Add the the shredded beet to the Tahini Dressing. Mix it well and serve.