Pho Hung is a Toronto classic. I've eaten here for about ten years, and had reliably delicious meals throughout. There used to be an outside patio, but about six years ago they extended the building to use they space. They are typically packed! Competition is still in the Spadina/Dundas Chinatown strip, and many restaurants are empty...so you can see that the locals vote with their feet. And Pho Hung is slightly more expensive than its neighbors, so their success should be even more impressive.
You order here by writing down your selections on a piece of paper. Actually, this is done at a lot of places in the area, and makes for fast service without a language barrier (not all the waiters speak english or french). You can also show up with a reasonably large group (say 6), and the owner will shuffle people around to make room.
Standards are #3 (a pho), #19A ("bun"=rice vermicelli noodes with spring rolls), and 30 (may have the # wrong: curry rice w/chicken). They have a vegetarian section of the menu with about 15 items: I often have the curry tofu. The #83 iced vietnamese coffee is great. Just be warned you'll have to be patient because it drip-brews in front of you, which takes about 10 minutes.
Enjoy!