Five Guys, depending on who you believe on here. I would look out the thread for you, but really can't be ****ed.
In truths Sarti's https://www.tripadvisor.co.uk/Resta...i_Sarti_Renfield_Street-Glasgow_Scotland.html or book the celebration menu at picollo mondo http://piccolomondo.co.uk/wp-content/uploads/Glasgow-Celebration-2016.pdf