Season the watercress in a small bowl with salt and pepper, and toss with just enough vinaigrette to coat the salad. Squeeze a few drops of lemon juice over each tuna steak, and top with a small ...

Think salad is boring? This classic French Niçoise ... salt and pepper. Place the tuna in a shallow dish and pour over half of the dressing. Cover and chill for 1-2 hours to allow the fish ...

Stir in both types of sesame seeds and the chilli flakes, if using. Divide the rice equally between four plates and top with the tuna salad. Garnish with coriander and serve.