Salad niçoise with tuna grilled on the Big Green Egg

Ingredients

• 500 g new potatoes
• 250 g haricots verts
• 4 eggs
• 1 butterhead lettuce
• 2 red onions
• 2 tbsp extra virgin olive oil
• 200 g cherry tomatoes
• 8 anchovy fillets
• 25 pitted black olives
• 3 tbsp capers
• 1 clove of garlic
• 2 tbsp white wine vinegar
• 1 tsp French mustard
• 1 tsp lemon juice
• 125 ml extra virgin olive oil
• 2 tbsp rosemary
• 2 tbsp freshly ground black pepper
• 1 tbsp sea salt
• 1 tsp sugar
• 1 tuna steak weighing approximately 500 g
• 75 ml mild olive oil