I'd like to begin by saying that La Banquise is the epitome of a lunch bag letdown. Firstly, it seems to be packed all the time, so be prepared to wait in line for what seems like forever. The restaurant itself is a lot smaller than I thought, and not the cleanest. The way the tables are arranged is also a bit awkward and I felt like my party was dining with the party next to us. Additionally, be prepared to speak loudly because it's impossible to hear anything over the loud music and other people's conversations.
The menu has a huge poutine variety, and there are even options for people with food restrictions and/ or allergies. I opted for fries with the vegan gravy. I was extremely disappointed. The fries were soggy and had an off taste. The gravy was okay. I will mention that I felt ill about an hour after I finished. The prices are also reasonable. Something I'd like to mention is that our server's behaviour was bizarre. He kept howling and/ or singing at the top of his lungs, which was interesting. Finally, you can't pay with credit, so make sure you have debit or cash on you.
Overall, I think La Banquise is extremely overrated. I would suggest Poutineville for those looking for good poutine.