Smoked Tuna with Tuscan Couscous

Ingredients

• 175g (6 oz) instant / quick cook couscous

• 300ml (1/2 pint) boiling water or vegetable stock

• 4 really ripe large tomatoes, seeded and diced

• 1 small red onion, finely chopped

• 1/2 cucumber, finely diced

• 1 small celery stick, finely diced

• 1 garlic clove, crushed

• 6 tablespoons extra virgin olive oil

• 2 tablespoons red wine vinegar or 1 tablespoon sherry vinegar

• 25g (1 oz) fresh basil leaves, roughly torn

• 400g (14 oz) smoked tuna, shredded

• salt and freshly ground black pepper

• extra diced or halved tomatoes and basil, to serve