Bind all of the ingredients for the kofta and roll them into 1 inch balls.
Heat the oil in a deep pan and fry the koftas a few at a time on a low heat until golden. Drain on kitchen paper.
Make your dressing by whisking together all of the ingredients in a large bowl. Add the griddled or barbecued courgettes, asparagus and blanched peas. Combine thoroughly.
Just before serving add the reheated koftas and combine until they are coated in the dressing. Arrange the vegetable medley on individual plates or a platter and top with the crispy tarragon leaves.