Fantastic food! This is one of those whole-in-the-wall restaurants that might not look like much, but leaves you feeling deliciously well fed and it's inexpensive. Suggest it as a dinner out with your friends and you'll be a hero.
Highly recommended: the roti in any form. Personally I chose the chick pea without pumpkin but within our friend group we had one of almost every version (with and without pumpkin - an extra addition) and they were all delicious. I had a bit left over to take home to hubby and the owner packed up an extra roti for me (for a very small charge), along with some potted hot sauce, all in a bag to take home.
I live in Ottawa but occasionally make day trips to Montreal: this is now my go-to Montreal food stop. I love the novelty of Schwartz's, and can always grab some bagels to take home; this place is worth the extra drive for lunch/dinner!