OPO Smash Burgers is a hamburger restaurant in Baixa, Porto. Rated 5 stars from 238 Google reviews. Known for smash burger craft and signature fries & sauces. Best for solo dining and quick lunch or dinner. Features a terrace. Price range: € 10–15.
Rankings updated May 2026
OPO Smash Burgers
Across 232 Google reviews, 100% gave four or five stars.
Quick Verdict
OPO Smash Burgers is a neighbourhood standout: meticulous smash burgers built from fresh local Portuguese produce, paired with cult-status fries and a charming owner who works the room.
You want the best burger in Porto—Kevin sources local buns and beef, and it shows.
About OPO Smash Burgers
OPO Smash Burgers occupies a rare position in Baixa: a casual, cosy counter that has earned a perfect 5.0 rating across 228 reviews without a single 1- or 2-star detractor. Owner Kevin approaches burger-making with the precision of a chef—sourcing buns directly from a local padeira, selecting high-quality Portuguese beef, and balancing flavours with signature sauces like basil mayo, truffle mayo, and chipotle mayo. The smash burgers arrive juicy without grease, singed without char, and paired with upgraded fries that reviewers consistently elevate to "legendary" status. The weekly special burger rotates (recent standouts include the Smoky, the Aristocrata, and the egg-and-extra-patty), and vegetarian options are available. Service is warm and attentive—Kevin often works the room himself, chatting with guests about ingredients and technique. The atmosphere is relaxed and welcoming, equally suited to tourists seeking Porto's best burger or students grabbing a quick, memorable meal. Outdoor seating overlooks the neighbourhood, and the €10–15 price point feels fair for the care evident in every element.
What Stands Out
Smash burger craft
Reviewers consistently describe burgers as 'the best I've had'—juicy, perfectly singed, with balanced flavours and high-quality beef sourced locally.
Signature fries & sauces
Truffle mayo, chipotle mayo, and basil mayo are called out repeatedly; upgraded fries earn praise as 'legendary' and 'perfect.'
Owner presence & service
Kevin works the room, chats with guests about food, and reviewers praise his warmth, attentiveness, and 'good vibes' across multiple languages and visits.
In Their Own Words
Review highlights surfaced by Google, in the language they were written
“Boa comida, bom ambiente, funcionários muito atenciosos!”
“Ótimo atendimento, hambúrguer e batatas deliciosas, um dos melhores de Portugal.”
“Hambúrgueres muito bons e serviço igual!”Practical Information
Opening Hours
Contact
Largo da Ramadinha 67, 4000-507 Porto
918 553 395☀️Outdoor
“When the weather permits, it's very pleasant to sit outside”
— Sila
Common Questions
How consistently good is OPO Smash Burgers?
Across 232 Google reviews, 100% of visitors gave four or five stars — placing OPO Smash Burgers among Baixa's most reliably rated hamburger restaurants.
Does OPO Smash Burgers have outdoor seating?
Yes — OPO Smash Burgers offers outdoor seating. Outdoor tables are popular during warmer months so arriving early or booking ahead helps.
Is OPO Smash Burgers family friendly?
OPO Smash Burgers accommodates families — Google visitors note facilities for children, and the casual atmosphere suits all ages.
Frequently Asked Questions about OPO Smash Burgers
Yes. It's popular for both lunch and dinner, with quick service even during busy times. Burgers arrive promptly, and the casual counter format suits a fast meal or takeaway.
Yes. The menu includes vegetarian options alongside the smash burgers, and reviewers note the restaurant caters to diverse diets.
Absolutely. OPO is marked as popular for solo dining, and the cosy, casual atmosphere makes it comfortable to eat alone at the counter or outdoor seating.
Owner Kevin sources fresh local ingredients—buns from a nearby padeira, Portuguese beef, and house-made sauces like basil mayo and truffle mayo—and crafts each burger with precision.
Yes. The restaurant has mesas externas (outdoor tables), perfect for enjoying burgers and fries with a view of the Baixa neighbourhood.
€10–15 per meal, including burger, fries, and optional sauce upgrades. Reviewers find the quality-to-price ratio excellent.
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