1.Process onion, garlic, coriander root, ginger and ras el hanout until well chopped. With motor running, add 2 tablespoons oil. Cover fish with paste, reserving 2 tablespoons. Cover and chill.
2.Heat remaining oil in large saucepan on medium. Saute kumera, onion and reserved paste 3-4 minutes. Add stock, bring to boil then reduce heat. Simmer, covered, 10 minutes.
3.Stir in chickpeas and zucchini. Simmer 3-4 minutes. Add fish. Continue to simmer, covered, 6-8 minutes, until fish flakes easily when tested.
4.Stir tomato and coriander leaves through. Serve with prepared couscous or quinoa.