Pulled Pork Taco Pie

Name: Pulled Pork Taco Pie
Ingredients: 1 2/3 cup tomato purée; sea salt and black pepper; 3/4 cup cider vinegar; 2 tbsp paprika; 1 tbsp fennel seeds; 1 tsp garlic powder; 2 tbsp brown sugar; 1/2 tbsp chilli flakes; 2 tsp oregano; 3 1/3 lbs pork shoulder; 1 shortcrust pastry case; 1/2 large bag tortilla chips; 1/3 lb Red Leicester cheese; 1/2 lb mozzarella; 1 red bell pepper; 1 yellow bell pepper; 2 tbsp mustard; 6 tbsp ketchup; Shredded red cabbage, salsa, spring onions, green chilies, pickled red onion, sour cream to top