I was given a little info book post op that said don’t eat garlic for about 48 hours but after that it was fine, I wasn’t told to avoid any food pre-op. I thought it was a little strange at the time because I’m a nurse and have never heard of it but I avoided it anyway. was told not to drink alcohol because it delays healing so avoid it until your incisions are fully closed at about 6 weeks, and obviously don’t drink close before your op. if your out at nandos I’m guessing your a few weeks post op anyway so you should be ok to eat anything you want x