Trout is a great alternative to salmon and cheaper too. Try it served with this fresh salsa for a summer lunch - the citrus will minimise any earthiness in the fish.
Each serving provides 282kcal, 31g protein, 6.5g carbohydrate (of which 1g sugars), 14.5g fat (of which 1g saturates), 1g fibre and 0.3g salt.
Preheat the oven to 200C/400F/Gas 6.
Stuff the cavity of the fish with the tarragon and lemon slices. Place in the oven for 20-30 minutes (depending on the size of the fish), or until cooked through.
Meanwhile, bring a small pan of salted water to the boil. Add the watercress leaves and cook for a minute. Drain and refresh the watercress in ice-cold water.
Transfer the watercress to a food processor, add the remaining ingredients and process to a purée. Season, to taste, with salt and freshly ground black pepper.
To serve, place the whole trout on a large plate and peel back the skin. Pour over the salsa verde.
