Seoul Forest burger spot with a lettuce wrap swap: Bas Burger Seongsu

In short

Bas Burger Seongsu is a burger restaurant near Ttukseom Station and Seoul Forest in Seongdong, Seoul, now moved one block over into a bigger, cleaner space. A weekend dinner here brought the Bas Burger, the Hawaiian burger, onion rings, sweet potato fries, a chili mozza cheese bar and beer, plus the option that swaps the bun for romaine lettuce. The James Gam fries and the chili mozza cheese bar alone make Bas Burger Seongsu worth another trip.

Bas Burger Seongsu representative photo

Good to know

Ordered
Bas Burger, Hawaiian burger, onion rings, sweet potato fries, chili mozza cheese bar, beer
Order options
Choice of raw or grilled onion with free extras; bun can be swapped for romaine lettuce
Beer
7 kinds, tasting available
Location
Near Seoul Forest and Ttukseom Stations; moved one block over into a larger space
Seating
Solo-dining seats available, though the restaurant is not very large
Wait
Weekend visit: busy but seated with no wait

as written by the visitor on Aug 11, 2026

Bas Burger Seongsu: a burger restaurant right by Seoul Forest

Bas Burger Seongsu is a burger restaurant right near Seoul Forest Station. I had plans in Seongsu on the weekend and ended up wandering around craving a burger so badly, so I went to Bas Burger Seongsu haha. I usually like burger restaurants and went in with high hopes, and it really was delicious. As expected, Bas Burger is a Seongsu Station favorite!!

Bas Burger Seongsu representative photo
A record of frequent visits to Bas Burger
Record of visits to Bas Burger
Screen showing repeat visits to Bas Burger

Proof of countless visits so far,, I personally love Bas Burger so I go often hahaha. Out of all the burger chains, this is honestly my favorite. The soft lettuce is pretty tasty too ❤️

It's right near Seoul Forest Station and I noticed they'd relocated! I used to come here sometimes before, but they moved one block over and it felt cleaner + expanded.

Inside Bas Burger Seongsu: space and seating

The inside of Bas Burger Seongsu is tidy and has plenty of solo-dining seats. The Seoul Forest/Seongsu area is always full of office workers at lunch and tourists too, so restaurants around here tend to be neat overall, and Bas Burger's interior was more organized than I expected, so it was comfortable to sit and eat. The vibe isn't super hip, more like a casual place that's good for eating burgers.

The relocated Bas Burger Seongsu storefront
View near the entrance of Bas Burger Seongsu
Tidy interior of Bas Burger Seongsu
Casual seating area of the store
Bas Burger's James Gam fries

James Gam fries, the side I always order

The thing I love most at Bas Burger!! It's the James Gam fries haha. They're tastier than regular potato fries, honestly. Crispy, thinly cut, and I still haven't found a fry that beats these ,,,❤️❤️

The table layout felt just right for coming with friends or on a date. The store isn't huge and it was packed, but thankfully we got in without a wait.

Signage for new menu items including Mozza Chicken Bites

New menu items, order options and 7 kinds of beer

Bas Burger Seongsu has a lot of new menu items now. There's Mozza Chicken Bites and a Mozza Chicken combo, and the chili mozza cheese bar seemed like the new menu item that's absolutely delicious ,, ❤️ Everything looked good,,

And I liked that when ordering a burger, you can freely choose or add raw onion or grilled onion. It was also nice being able to try beer tastings and multiple sauces at once!! There were as many as 7 kinds haha. Beer prices were reasonable too.

Burgers and sides laid out on a Bas Burger Seongsu table

What we ordered at Bas Burger Seongsu and how the prices felt

We ordered the Bas Burger, Hawaiian burger, onion rings, sweet potato fries, chili mozza, and beer!!! Since the James Gam fries exist, having sweet potato fries alongside them turned out to be a surprisingly good combo haha.

Overall, the patty was solid, so satisfaction was pretty high. Burger restaurants these days tend to be pricey, and this place isn't dirt cheap either, but considering the cost of living around Seongsu/Ttukseom, it didn't feel overly expensive.

Chili mozza cheese bar with beer
Chili mozza enjoyed with beer

Especially this chili mozza with beer was such a good match ,,,,,,,,,,,, Especially great to eat together in this hot summer haha.

Cross-section of the classic Bas Burger

The Bas Burger, the classic on the menu

First we tried the Bas Burger. Since it's the basic burger, I honestly didn't expect much, but the patty was pretty thick and juicy, so it was tastier than I thought. The bun wasn't too dry either, on the softer side, and the veggies felt fresh hahaha. Maybe because it's the basic option, the combination of ingredients wasn't overdone, so it was more than just decent — it was actually delicious haha.

Plate with the Hawaiian burger

The Hawaiian burger: pineapple on a beef patty

And the one I was personally curious about was the Hawaiian burger!!! Burgers with pineapple are a bit love-it-or-hate-it, but I already like pineapple in food so I ordered it hahaha. Trying it, the salty flavor of the patty and the sweetness of the pineapple worked together, and the combo was better than expected ❤️ This might become my favorite burger???

The pineapple seemed to cut through what could otherwise be a greasy burger flavor. Sometimes burgers get greasier the more you eat, but this one felt less like that, which I personally liked haha. Recommended.

Hawaiian burger with pineapple
Bitten cross-section of the Hawaiian burger
Table with burgers and sides together
Burger with bun swapped for romaine lettuce

Swapping the bun for romaine lettuce: how it works

This is the bun swapped for lettuce, good for people like me who don't love bread! The romaine was softer than expected and easy on the stomach, so I liked it ,,,,,,,,, You could call Bas Burger thoughtful for sparing dieters any guilt haha. It's actually pretty tasty too and not bad for you health-wise! So I'd recommend this option.

Romaine-swapped burger with sides
Sweet potato fries and sauces

Sides: sweet potato fries and onion rings

Do I even need to say it — the sweet potato fries and onion rings here are just delicious. Crispy, generous portions, and with Bas Burger's many sauces to dip into here and there, you can basically reach total happiness haha.

Crispy onion rings

So crunchy ❤️ The batter isn't too thick and the onion flavor really comes through. I personally can't eat much of greasy onion rings, but these felt lighter than expected — so good.

Final shot of burgers and sides

Would I go back to Bas Burger Seongsu?

If you're visiting Seoul Forest, or hanging out around Seongsu/Ttukseom, I'd recommend stopping by Bas Burger Seongsu once.

Especially !!!!!!! this chili mozza cheese bar — it's subtly spicy but so addictive lol. Really try it once. I'm bad with spice but I enjoyed it.

Chili mozza cheese bar with a glass of beer

Eating beer and various sides together with a burger makes you feel full and happy at the same time.

Personally, next time I go I think I'll order the Hawaiian burger again. If you like burgers with pineapple, it's worth trying once, I recommend it! + I'll go with the romaine swap again haha. When you want a burger near Ttukseom Station, Bas Burger Seongsu is a Seongsu Station favorite worth visiting haha. I think I'll stop by again next time I'm in the area.

Where it is

Bas Burger Seongsu바스버거 성수점

9 Wangsimni-ro 4ga-gil, Seongdong-gu, Seoul, South Korea, 1st floor서울특별시 성동구 왕십리로4가길 9 1층 바스버거

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