I was going to post this a few days ago, but the board was down, and I forgot until seeing littleparsnip's thread below. It reminded me.
I know this is a little out of season, but I recall reading an article in the Toronto Star in July about the legality of street food in Toronto. Specifically, it said that "mobile preparation premises" have to meet restaurant standards (ie. foods must be stored at the correct temperatures and hand-washing facilities must be available). There is an exception for hot dog carts who may "reheat a pre-cooked meat product in the form of wieners or similar sausage products served on a bun."
It goes on to talk about a vendor who has managed to get around this regulation by operating on private property. I'm interested to know what people think of these regulations on a whole, and what everyone's favourite street food (legal or otherwise) is.
I would have to nominate the street vendors in the Gerrard India Bazaar area.. Just the other night I had a delicious spicy chicken tikka leg quarter on naan with salad for $2.99, which is pretty hard to beat.