All the pulled pork into a large frying pan over medium heat with the fennel seeds, paprika, a pinch of sea salt and black pepper, and stir regularly.
Add 1 tbsp of olive oil and the cumin seeds into a separate frying pan. Add the spring onions and garlic, then stir in the beans and their juices, and simmer.
Finely slice the chilli, lettuce and most of the top leafy half of the coriander, then peel and chop the avocado, along with the tomato.
Toss and pile all this on a platter, coarsely grating the apple on top. Ripple a little chilli sauce through the yoghurt in a small bowl.
Stir, mush and season the beans to taste.
Drizzle the salad with a little soy sauce, 1 tbsp of extra virgin olive oil and the lime juice, then toss together.
Drain the fat from the pork pan, then serve everything straight away, with a pile of taco shells and all the other elements, sprinkled with the remaining coriander leaves.