1 tsp paprika - choose sweet or hot depending on taste
1 tsp Worcestershire sauce
2 tbsp chopped chives, to serve
Heat oven to 200C/180C fan/gas 6. Scrub the potatoes and dry well, then prick in several places with a fork. Bake directly on the oven shelf for 1-1½ hrs, until they feel soft when squeezed.
After 30 mins, heat the oil in a pan and gently cook the carrot and celery for 10 mins until softened. Add the beans, tomatoes and paprika and cook gently for a further 5 mins until the tomatoes are softened and pulpy. Stir in 100ml water and the Worcestershire sauce, cook for a further 5 mins then cover and keep warm.
Split open the potatoes and spoon in the beans. Scatter with chives and serve.