Method:

• 1

  Sauté the prawns in a pan with oil, salt and pepper. Add the lime juice and cook for a few minutes to allow it to evaporate. Wash the celery and dice it finely. Mix the mustard with the mayonnaise.

• 2

  Toast the buns. Fill them with the sauce, the lettuce, prawns, celery and chopped chives, garnish with some diced lime zest and serve.