1 Place bulgur wheat in a pan with stock and bring to the boil. Cover and simmer for 15 minutes. Drain well.
2 Place all remaining ingredients except oil, brioche and salad in a food processor and whizz to blend together. Stir in bulgur wheat and season to taste. Shape into four patties, cover and chill for 1 hour.
3 Heat oil in a non-stick frying pan and cook burgers for 4-5 minutes on each side until golden. Serve on brioche with tomatoes and leaves.