The Home of the CHCH Phoenix Supporters: Spectators Bar & Bistro is literally right next to AMI stadium.
They're keen to get a croud in before matches and are putting on a $10 Burger and Beer deal on matchdays.
So if you're going to any matches in CHCH and are keen for a beer and to talk some football beforehand then get along to Spectators!
That sounds a good go for fans in Chch.
I think they allow you to leave the stadium between matches in double-headers for a feed too.
AMI Stadium allows spectators to freely come and go during games and between double-headers too as far as I know.
There's nothing prohibiting it in the AMI Stadium regulations which I just looked at.
(Nor in the FIFA tournament and ticket regulations)
Apparently Westpac Stadium in Wellington won't allow fans to leave the ground during games or between double-headers and re-enter the stadium.
Cargo Bar and Restaurant down the road from AMI Stadium are offering $40 of food and drink for $20 for any number of people the whole of June after 6 pm with this voucher:
http://www.grabone.co.nz/christchurch/cargo-bar-32
"Expires Jul 1, 2015
Limit: 2 for you and 2 gifts for others
Bookings essential. Subject to availability. Valid from 6.00pm seven days. Maximum two coupons per booking. Must be used in one visit. Not valid public holidays. R18."