Start this recipe with the beans. Heat the oil in a pan and fry together the onion and celery for 2 minutes. Add in the chorizo and continue to cook for a further 2 minutes for the chorizo to release its flavours. Next, add in the fajita seasoning, paprika, chopped tomatoes and treacle and cook on a low heat for 10-15 minutes. Finally, add in the beans and cook for a further few minutes. Meanwhile, prepare the patties by mixing together the cooked onion, minced beef, fajita seasoning and coriander together. Season well then divide into small balls. Stuff a piece of Cheddar cheese into each ball and flatten into a patty. Heat the olive oil in a pan fry the patties on both sides for 4 minutes, or until cooked through. To serve, spread a tablespoon of sour cream onto your wraps. Top with some salad leaves, followed by 2 or 3 patties. Cover with some grilled pepper slices and sprinkle over a few coriander leaves. Roll up tightly and place in a hot oven for just 3-4 minutes to warm the wrap through. Cut the wraps in half diagonally and serve with the spicy chorizo and tomato beans on the side.