Mediterranean salad

Ingredients

• 150g French beans, halved
• 1 red pepper, deseeded and quartered
• 1 courgette, sliced on the diagonal 4mm thick
• 1 red onion, sliced into 7mm rounds
• 2 little gem lettuce, leaves separated
• 200g can tuna steak in oil or brine, drained & flaked
• 250g small tomatoes, quartered
• 6 medium British Lion eggs, hard–boiled and halved
• Handful pitted black olives, halved
• 4 tbsp extra virgin olive oil
• 2 tbsp lemon juice
• 2 tsp Dijon mustard
• 1 small clove garlic, crushed