Nicoise Salad (salad Perancis dengan tuna)

Bahan-bahan (4 porsi)

• 8 baby/chat potatoes ((Note 1))
• 120 g / 4 oz green beans (, trimmed)
• 2 tomatoes (, each cut into 8 - 10 wedges)
• 1/2 baby cos lettuce (romaine) (, cut or torn into large bite size pieces)
• 3 hard-boiled eggs (, peeled and quartered)
• ¾ cup / 100g unpitted black olives ((Note 2))
• 250 - 300g/ 8 - 10oz canned chunk tuna in oil (, drained and broken into large chunks (Note 3))
• 1 1/2 tbsp lemon juice
• 4 tbsp extra virgin olive oil
• 1 small garlic clove (, minced/grated)
• 1/4 tsp salt
• 1 tsp Dijon mustard
• Pinch black pepper