Bring vegetable stock and 1 tablespoon of olive oil to the boil. Sprinkle with couscous and let it swell for 8 minutes.
Rinse and clean the zucchini. Peel carrots. Dice zucchini and carrots. Heat the remaining olive oil in a frying pan. Steam the carrots for 5 minutes. Add the zucchini and steam for another 3 minutes.
Chop the walnuts and add. Add chick peas and couscous. Season to taste with salt, pepper, cumin and lemon peel. Rinse off herbs, shake dry and chop. Mix the herbs into the couscous.