1 ripe, small avocado, peeled and quartered
200g/7oz raw beetroot, peeled and grated
200g/7oz carrots, peeled and grated
100驳/3陆辞锄 iceberg lettuce, shredded
700g/1lb 9oz sweet potatoes (3 medium)
2 x 400g/14oz tins black beans, rinsed and drained
sea salt and freshly ground black pepper
2 tsp chipotle paste
2 tsp hot smoked paprika
50驳/1戮辞锄 walnuts, toasted
100驳/3陆辞锄 non-dairy yoghurt (of 0% fat Greek-style yoghurt)
4 large corn (or wheat) tortillas