I'll be honest, I expected to like Ottavio, but I wasn't prepared for how much I would love it. As someone who has been a diagnosed Celiac since 2008, I've found that almost too many restaurants now serve 'gluten free' food, but haven't necessarily trained their staff to know what that means. I often worry at chain restaurants about cross contamination - or worse - that I'm getting entirely the wrong thing.
At Ottavio, the back of the menu lists all gluten free items and explains that they've provided a Celiac-friendly menu since 2007 (i.e. Before it was cool). I was immediate more at ease.
The server brought me gluten free bread as a starter. It was on the house and - wait for it - served piping hot as opposed to dried out and terrible. My partner (a typical gluten eater who no longer sees bread as a novelty) had originally declined his serving, but after stealing a few bites of mine, he decided he definitely wanted his own bread.
I had the granite (or garlic bread with cheese if you're from outside of Montreal) and GF Californian pizza. The crust was good - maybe a little dry, but very satisfying with a ton of goat cheese. Everything came quickly. The portions are big and I left with half a pizza for lunch tomorrow so that we could save room for dessert - crème brule. To top things off, it's BYOW.