Grilled chicken with lemon and couscous

When I was buying the ingredients tonight I got really excited about making this dish as the mint and coriander were giving off such a heady scent.  Ironically it was the herbs that ruined this meal for us in that there was too much of them - were I to make this again I would half the herb content.  Also, I felt that the preserved lemons were a unnecessary and expensive (they cost as much as the chicken) addition - I'd be tempted to just add more fresh lemon juice and flesh instead.  Sorry for the moaning Nigel but you can't win them all!