There's this uniquely Canadian thing called "Poutine". When it's good, it's wonderful, but all the fast-food-chain versions are abominable.
When it's great, it's hand-cut russet potatoes fried in peanut oil, dowsed, while hot, with a demi-glace made from a nice haunch of beef and tossed with fresh cheddar curds. The heat from the fries melts the cheese curd, you toss again to distribute the concentrated beef flavour and then you get stuck in.
The strip-mall fast-food version is synthetic beef gravy and process cheese tossed with frozen potato sticks fried in dubious fat.
Our local serves something called "chile fries", consisting of a basket of french fries, topped with chile (the canned red kidney beans and hamburger kind) as well as sour cream, jalapeño pepper rings, tomato salsa and shredded, no-name cheese. It's not as revolting as it sounds if you've had a few.