Combine garbanzos, tahini (reserve 1 T), lemon juice
and garlic in a food processor. Process until thick and smooth. Adjust
flavor with lemon and salt. Adjust consistency with water.
Serve in a shallow dish, garnish with olive oil,
parsley, cayenne pepper or paprika.
Add the shredded Swiss chard and fry, stirring often,
until wilted.
When the lentils are soft, add the onion and Swiss
chard mixture. Add the remaining ingredients. Season to taste with salt
and pepper. Cover and simmer gently for a further 15–20 minutes.
Serve the soup in deep plates, with lemon wedges for
squeezing into the soup according to individual taste.
Serve with lemon wedges and Khoubz or other bread.