Roasted leek, rocket and sweet potato salad
Ingredients (serves 6): 1kg sweet potato, unpeeled, cut into 4cm pieces 3 small leeks, trimmed, washed, cut into 2.5cm slices 1 tablespoon olive oil 125g tub plain Greek-style yoghurt 2 teaspoons wholegrain mustard 50g baby rocket Method: Preheat oven to 190°C/170°C fan-forced. Place sweet potato, leek and oil in a large roasting pan. Toss to…