Osmo X Marusan occupies a distinct underground space defined by an industrial aesthetic and a lively, resonant atmosphere. The menu emphasizes Japanese-inspired snacks such as crispy karaage and savory katsu sandos paired with delicate tamago. Guests encounter a selection of matcha and hojicha lattes prepared with deep, earthy tea profiles that balance the bold textures of the food. The venue integrates an expansive outdoor terrace that contrasts with the enclosed, modern interior design. Vibrant musical selections fill the space, contributing to the energetic environment that defines this unique hangout. These features combine to create a singular experience where minimalist architecture meets traditional flavor profiles in an unconventional setting.
Osmo X Marusan is a highly popular, uniquely designed spot in Montreal that blends an industrial, bunker-like aesthetic with a lively, social atmosphere. Guests frequently praise the high-quality matcha, hojicha lattes, and creative Japanese-inspired menu, particularly the various sandwiches and curry dishes. While many visitors find the environment perfect for working or socializing, others note that the space can become extremely busy and loud, occasionally featuring live DJ sets that may not suit those seeking a quiet retreat. Experiences regarding service and food consistency vary, with some patrons describing the offerings as fresh and delicious while others find certain items bland or the wait times excessive. Overall, the location is widely considered a trendy and memorable destination for those who appreciate a vibrant, artsy, and upbeat cafe experience.
This place has been on my list for a while & I was finally in the area today, so I thought why not.
It was extremely busy & loud which made it difficult to communicate with staff. I placed my order & it was brought to where I was seated about 15 minutes or so later. It looked absolutely delicious & I love a jammy egg...
... but it barely tasted of anything at all. The bread seems to just be regular American style white bread, & whatever sauce they use is completely flavourless. I don't even know what it was. I can't even compare it to anything because I couldn't identify even a single flavour within. It's trying to be a quirky version of the Japanese style egg sandwich but it's completely unnecessary.
Sitting there, you quickly realize that this is yet another place that exists for vibes, stories, & to blow up online thanks to influencer content - & yeah, I was one of the people influenced, that's why I came here haha. People around me taking tons of photos & selfies & video recordings of themselves trying everything they ordered... which is fine. I took a picture too. But it's clear the food here is made to be Instagrammable over all else.
On the plus side, the coffee was good & the service was warm & friendly. But overall, this place didn't live up to the hype for me personally.
The building & entrance is hard to spot. There's a nice industrial vibe inside. The matcha is weak & powdery I would not recommend. Coffee was 10/10. The egg sandwich was delicious with deep fried breaded jammy boiled eggs. Keep in mind the kitchen does not open until 11 am if you're going for the sandwich. I would go back for the coffee & egg sandwich.
Today (June 24) late morning I went to this cafe to try their coffee, terrasse & food which were good. However, the issue is with the differential treatment I received from the cashier when I stood in the line. In front of me there was a white girl whom the cashier spoke to very nicely & ask how she was. When my turn came, the cashier's attitude suddenly shifted to a defensive attitude, cold smile, not the same treatment she offered the customer before me. An hour later I went to order some food & again the same attitude. I felt targeted by this lady.
To be fair, the people who were serving the food & making the coffee were much friendlier to me.
Jun 24, 2026
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One of the most stylish cafes in Montreal. Remarkable design, excellent coffee, warm & kind service along with a very nice view of an inner courtyard. All served alongside Japanese sandwiches & snacks. Gets very busy around lunch.
Great sandwich & coffee! It's always very busy though because food is great.
The terrace is really nice in hot summer days too & a plus cause it's dog friendly.
I came here just after 2 p.m. specifically for the egg sando, only to find out they were sold out. Since I hadn't come up with a backup plan, I let the really kind hostess pick both my sandwich & coffee for me. You order, grab a seat, & wait for your name to be called when everything is ready.
The restaurant is easy to miss. It's set back from the street &, partially hidden behind overgrown weeds & litter. Once you find it, the space is actually below street level & has a retro, almost 1970s bunker-like vibe. There's plenty of indoor & outdoor seating, though some of the less-used furniture & fixtures could use a good dusting.
I ended up with the karaage sando & a matcha. The matcha was strong, which I appreciated. The sandwich was very meaty, though I wasn't a fan of some of the rib meat pieces.
Overall, I'd say it's a hipster hangout with a solid menu. Just be sure to get there before the kitchen closes at 3 p.m. & even earlier if you have your heart set on something specific.
