Poutine

By Jonathunder - Own work, GFDL 1.2, https://commons.wikimedia.org/w/index.php?curid=5185607
A Quebecois dish made with fried potatoes, cheese curds and topped with meat drippings. Or, in other words: French fries, cheese curds and gravy. There will be poutine imitators out there, but shredded cheese just doesn’t substitute for the real deal cheese curds
Maple syrup

By Dvortygirl - Own work, CC BY-SA 3.0, https://commons.wikimedia.org/w/index.php?curid=1507867
Made from the xylem sap of a sugar maple, red maple or black maple. It is delicious and should be poured liberally on pancakes. Unfortunately you may find ‘maple flavoured’ syrup in New Zealand and Australia which is not the same!
BeaverTails
Kiwis will have no idea what you are talking about.
Nanaimo Bars

By Joy - Flickr: Nanaimo Bar, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=13276538
Named after the city of Nanaimo in B.C. With many different variations it’s no wonder you might miss this sweet treat.
Double double coffee from Tim Hortons
Don’t worry, once you discover the café culture in New Zealand, drip coffee will be a distant memory
Kraft Dinners

By Matt MacGillivray from Toronto, Ontario, Canada - Flickr, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=2201560
Fear not! You should still be able to find this in New Zealand and Australia.
Smoked meats
You might have to learn how to make this yourself. It is not common to have smoke meat in New Zealand and Australia.
Canadian bacon with maple syrup

By Stefano A. from Toronto, Canada - Canadian Bacon, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=11803831
Fortunately you can still find this cut of bacon in New Zealand and Australia. You might get odd looks if you order bacon and maple syrup in a café though.
Butter Tarts
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By Rob Campbell from Toronto, ON, Canada - butter tarts, CC BY 2.0, https://commons.wikimedia.org/w/index.php?curid=34839995
Pure butter, sugar and eggs. You can add something healthy like raisins, walnuts or pecans. No judgement if you do or don’t.
Ketchup chips
Kiwis and Aussies will just ask …why?