Peel, wash and chop the carrots. Peel and chop onion and garlic. Fry everything in oil. Add 1 l water, broth and 1 teaspoon cumin, bring to the boil. Cover and cook for about 10 minutes.
Add 50 ml of boiling water to the couscous and 1 pinch of salt and leave to swell for 4-5 minutes. Chop the nuts and mix in. Wash and chop the herbs. Puree the soup with half the feta. Season to taste with salt, pepper and lemon juice.
Serve with couscous, remaining crumbled feta and herbs.