400g/14oz peeled butternut squash, cut into 5mm/¼in dice
small bunch fresh coriander, chopped
½ small garlic clove, crushed
½ lemon, juice only
1 small romaine lettuce, finely sliced
4 spring onions, thinly sliced
400g tin mixed beans, drained and rinsed
salt and freshly ground black pepper
1¼ tsp ground cumin
1 tbsp harissa paste
1 tbsp olive oil
200g/7oz full-fat Greek-style yoghurt
4 medium or large tortilla wraps