Vua Sandwiches is one of the best places in Montreal to grab a quick and cheap bite. This place is famous for its Bánh Mì sandwich, which costs around $3.50 on average. Located close to the Berri metro station, it caters to the population of frugal UQAM (university) students in the area.
The quality of the sandwiches are quite good despite the low price. The ingredients were pretty fresh, and they don't skimp out on ingredients. It's undoubtedly a great bargain for its price.
There are also other Asian snacks (such as pre-made sushi, etc.) and drinks in the store, although these tend to be much pricier than the sandwiches.