My friend and I had really sublime beet/celery root/carrot/yam soup at Marché Soupson on Jean Talon yesterday ($4.50/bowl) and took home 1L jars of spinach/potato and cabbage/fennel soup ($8.99 each). All their soups are vegan and vary day to day. I saw on their twitter that today it's creamy potato with fresh dill. If you go by today and you're lucky, they will have jars of the beet soup!
They also make sandwiches, salads, ready-to-bake lasagna and a habanero hot sauce (gingery I think with kick, you can get a sample taste), and also sell baked goods from Sweet Lee's Bakery. Their address is 149 Jean Talon W. (corner Waverly).