I love King Street in Toronto where the theatre district is. There is a whole block of restaurants for you to choose from before catching the show. Unfortunately the hours of some of those restaurants aren't quite condusive to eating before the show.
Before heading to the theatre this time, we were in a bit of a rush. We had 45 minutes to make the show so we wanted someplace quick. We ended up in Dunn's Famous Delicatessen, between Princess of Whales Theatre and Royal Alex (which is where our show was). We asked them if they could get us in and out in 45 minutes and they said no problem, so we were seated. This restaurant is long, but surprisingly not that narrow. It's nice and clean, with wood tables and benches. You can sit near the window (I suggest sitting there), or all the way at the back of the restaurant. It has a fairly pleasant atmosphere. And the washrooms are nice, clean, and don't make you want to hurl when you use them.
The two others I was with ordered their a deli sandwich, coleslaw, and a pickle. I had a chicken burger. The food was brought out quickly and was pretty tasty. If you like pickles, I suggest getting one when you are there. They are huge!
The service was so quick, that we actually had time for a coffee after our meal because we had been served so quickly.
I would definately consider going back if I'm in a rush and just want plain sandwiches/burger type food.
Go to ResToronto Reviews to see more reviews of Dunn's Famous Deli