Mediterranean Vegetable galette

Ingredients

• 450g plain flour
• 230g Devondale Dairy Soft butter
• 3 Tbsp (60 ml) cold water
• 1 egg yolk
• quarter cup olive oil
• 2 Tbsp balsamic vinegar
• 1 large eggplant, cut into 2 cm dice
• 1 sweet potato, peeled, cut into 2cm dice
• 1 zucchini, cut into 2 cm dice
• 1 red pepper, cut into 2cm dice
• 1 yellow pepper, cut into 2 cm dice
• 1 red onion, diced
• 1 stalk celery, sliced
• 2 cloves garlic, peeled and sliced
• 1 punnet cherry tomatoes, halved
• Sea salt and freshly ground black pepper to season
• 125g Liddells Lactose Free Shredded Cheese
• ¼ cup small black olives, pitted
• 1 Tbsp capers
• 2 Tbsp basil pesto, to serve