I've not been on a Saturday night and have always ordered ahead, I think the big boy burgers have always been about a tenner, but the little lunch ones are cheaper, both are bloody good though so I'm sure you'll enjoy it when it arrives.
ZFC is sorely missed, I think I've preferred the burgers I've had from there over zads, but not by much, go falafel is the best though, extra chili, little bit less tahini 👌
I've not been on a Saturday night and have always ordered ahead, I think the big boy burgers have always been about a tenner, but the little lunch ones are cheaper, both are bloody good though so I'm sure you'll enjoy it when it arrives.