If you are stuck in Toronto's Pearson International Airport in Terminal 1 and are looking for food - Pizza, Pizza provides serviceable sustenance. Portions are scanty, the price is artificially raised, but it's ok. Just ok though. Nearby, Upper Crust offers sandwiches which are a better bet.
Also, a word to the wise, if you are an adult and you order chicken strips, you don't get as healthy of a portion as kids. Or at least, that was my anecdotal observation based on those around and my sad portion of fries. At least you can't mess up fried food.
Toronto Pearson International Airport (YYZ)
2 of 5 (only because expectations outside O'Hare are much lower at airports)