Me?
I haven’t been to Winnipeg in ages but it has amazing food!
Hard to limit it to one meal.
Regional stuff:
Walleye (aka pickerel )
Goldeye fish
Applejack - a apple pie type handpie
Imperial: a cookie that is similar to an Empire biscuit. A sugar cookie sandwich cookie with raspberry or other red jam in the middle, white icing on top, and a cherry or dried cranberry on the icing.
Vinarterta (prune cake, prob hard to find these days)
if you like Ukrainian food, there is good Ukrainian food in the Peg
There’s a massive Cheeseburger called The Fat Boy iirc, let me find the name.
let me think some more.