For the couscous, heat the olive oil in a pan. Pour in the couscous, and allow to roast and colour slightly in the pan for 3-4 minutes. Transfer to a bowl and pour over the hot stock. Cover with cling film set aside for 5-6 minutes, or until the couscous has absorbed all of the liquid.
Fluff up the grains with a fork and stir in the pomegranate seeds and chopped fresh herbs.
Preheat the oven to 180C/350F/Gas 4.
For the fish, make three deep incisions in the fish and place a wedge of lemon and a slice of garlic into each. Season with salt and freshly ground black pepper.
Heat the olive oil in a frying pan and fry the salmon, skin-side down, for 2-3 minutes, or until the skin is golden-brown and crisp. Transfer the fish to an ovenproof dish, sprinkle with half the herbs and add a splash of stock. Place into the oven to roast for 8-10 minutes, or until the fish is cooked through.
To serve, spoon the couscous onto a serving plate and lay the fish fillet on top. Garnish with more fresh herbs.
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