For sea bass with olives, saffron & preserved lemon,
heat 2 tablespoons olive oil in the base of a tagine or a large, heavy-based saucepan over a medium heat, stir in a pinch of saffron threads, 2 tablespoons finely sliced green olives and 1 tablespoon finely sliced preserved lemon rind and cook for 1,5 minutes to let the flavours mingle. Add 500 g skinless, firm-fleshed fish fillets, such as sea bass, cut into bite-sized pieces, and cook for a further 3 minutes. Season, cover and cook over a low heat for 5 minutes until the fish is just cooked through. Serve with couscous.