Peheat oven to 400 degrees F. Prepare a baking sheet with parchment.
Toss the beets with a little olive oil and bake for 20-25 minutes, or until soft.
In a food processor, add the sesame seeds and process until they turn to a powder. They won't get completely smooth at this stage, but don't worry, they will get smoother when we add the other ingredients.
Add the salt, and while the processor is spinning, slowly add 2 tablespoons of the olive oil. Scrape down the sides.
Add the chickpeas, beets, garlic, and lemon juice. Start the processor and while it is spinning, slowly add an additional 2-3 tablespoons of olive oil. Add the water, and process until smooth and creamy. The water will help it become smooth and fluffy.
When serving, drizzle with a little olive oil.
You don't need to use parchment on the baking sheet, but it helps with clean up. You could also use foil.