Moroccan vegetable casserole

Ingredients

• Couscous
• 2 cup couscous
• 2 cup boiling water
• 1/2 cup roughly chopped pistachios, roasted
• 1/4 cup roughly chopped coriander leaves
• 1/3 cup oil
• 1 onion, chopped
• 2 garlic cloves, crushed
• 2 teaspoon paprika
• 2 teaspoon moroccan seasoning
• 2 teaspoon ground cumin
• 1 teaspoon turmeric
• 1 teaspoon ground coriander
• 1/2 teaspoon minced chilli
• 6 chat potatoes, halved
• 1 parsnip, chopped
• 500 gram pumpkin, peeled, chopped
• 2 cup cauliflower florets
• 2 cup vegetable stock
• 1 tablespoon chopped preserved lemon
• 400 gram can chickpeas, rinsed, drained