I recently tried Balsam Inn, right beside Dominion Square Tavern, and had a great GF experience. I was there with friends for after work drinks and we sat outside on the terrace right near Peel street. The cocktails, food, service and atmosphere were great. Since we were there for cocktails we just ordered the side olives and bocconcini with tomato. Several options on the menu were gluten-free as is and many of the other options could be adapted. The waitress was very attentive in making sure my cocktail and food was gluten-free.
I definitely recommend Balsam Inn if you are right downtown and looking for a cute place for a drink and a bite to eat. As this is a regular restaurant there are risks of cross contamination so always make sure to tell your server.
Accommodates gluten-free: Yes
Gluten-free menu: No