Directions

1. Halve the potatoes and cook in water with salt for 15 minutes. Add in the green beans in the last 5 minutes.

2. In the meantime, make the dressing by mixing together the orange juice, mustard and olive oil. Season with salt and pepper. Cut the onion into thin rings and mix through the dressing.

3. Drain the potatoes and beans, and mix with the dressing. Set aside to cool for a few minutes.

4. In the meantime, cook the eggs and wash a few lettuce leaves. Cut the tomatoes into quarters. Place the lettuce leaves on a serving platter and then place the potato and bean mixture on top. Top this with the eggs, tomatoes, tuna and black olives.