Egg Niçoise salad

Name: Egg Niçoise salad
Prep time: 10 min
Cook time: 10 min
Total time: 20 min
Cuisine: European, Mediterranean
Ingredients: 2 tbsp rapeseed oil; juice 1 lemon; 1 tsp balsamic vinegar; 1 garlic clove , grated; ⅓ small pack basil , leaves chopped; 3 pitted black Kalamata olive , rinsed and chopped; 2 eggs; 250g new potatoes , thickly sliced; 200g fine green beans; ½ red onion , very finely chopped; 14 cherry tomatoes , halved; 6 romaine lettuces leaves, torn into bite-sized pieces; 6 pitted black Kalamata olive , rinsed and halved