Feta, Walnut and Nigella Seed Salad from Mighty Spice Cookbook by John Gregory-Smith

Ingredients

• 4 spring onions, finely sliced
• 2 tbsp olive oil
• sea salt
• freshly ground black pepper
• 2 large handfuls mint leaves, roughly chopped
• 2 large handfuls parsley leaves, roughly chopped
• juice of 1 lemon
• 1 tsp nigella seeds
• 200 g/7 oz feta
• 1 green chilli, deseeded and finely chopped
• 1 large handful tarragon leaves, roughly chopped
• 50 g/1¾ oz/scant ½ cup walnuts, roughly chopped