Green couscous with broad beans, dill and pistachios

Middle Eastern cuisine hits all the right notes with this healthy, tasty side.
Recipe by Jill Dupleix

1 cup (200g) couscous
1/2 onion, thinly sliced
2 tsp ground ginger
8oz (200g) podded fresh or frozen broad beans
1 green bell pepper, thinly sliced
1/2 avocado, chopped
1/4 cup chopped fresh dill
2 tbsp thinly sliced scallions
2 tbsp lemon juice, plus wedges to serve
1/4 cup (60ml) extra virgin olive oil
1 garlic clove, crushed
2 tbsp pistachio kernels, roughly chopped
1/2 bunch watercress, leaves picked

Toss the couscous, onion and ginger in a heatproof bowl. Stir in 200ml (about 7 fl oz) boiling water. Cover and stand for 5 minutes.
Meanwhile, cook the beans in boiling salted water for 3 minutes. Drain, refresh under cold water, then discard tough outer skins.
Fluff the couscous with a fork, then add the beans, bell pepper, avocado, dill and scallions.
Whisk together the juice, oil and garlic, then toss with the couscous.
Scatter with the pistachios and serve with watercress and lemon wedges.