Tom yum fried rice lunch at a Sejong Thai restaurant: Mekong Thai

In short

Mekong Thai Sejong Naseong Branch is a Thai and Vietnamese restaurant on the 2nd floor of the NS Building in Naseong-dong, Sejong. Over a weekday lunch with a friend who had lived in several Southeast Asian countries, the writer ordered tom yum fried rice for 15,900 won and brisket pho R for 12,900 won, then tried the soy sauce and cheongyang chili combo the friend recommended. If tom yum is new to you, the fried rice is an easy place to start, and the group table at the back of Mekong Thai makes it worth a look for gatherings.

Featured lunch photo at Mekong Thai Sejong Naseong Branch

Good to know

Location
2nd floor, NS Building, 133-9 Naseong-ro, Sejong
Hours
10:30–21:00 (break 15:30–17:00)
Parking
Parking lot in the building
Tom yum fried rice
15,900 won
Brisket pho R
12,900 won
Seating
Separate group table at the back
Free on request
Bean sprouts, lemon, cilantro
Price reference
₩15,900 ≈ $12 · ₩12,900 ≈ $9.5 (2026-09-23)

as written by the visitor on Sep 23, 2026

Featured lunch photo at Mekong Thai Sejong Naseong Branch

Mekong Thai in Naseong-dong, Sejong 🌿 Lunch with a friend

I had lunch with a friend I met after moving to Sejong last year, at Mekong Thai Sejong Naseong Branch. My friend lived in several Southeast Asian countries for years, so we had plenty to talk about while picking our dishes 👀 Let me walk you through the tom yum fried rice and brisket pho we ate together, plus the restaurant's vibe :)

Where is Mekong Thai Sejong Naseong Branch, and what are its hours and parking?

Mekong Thai Sejong Naseong Branch is on the 2nd floor of the NS Building, 133-9 Naseong-ro, Sejong, South Korea. Hours are 10:30–21:00, with a break time from 15:30 to 17:00, and parking is available inside the building.

We visited a bit after the weekday lunch rush. Stepping off the elevator, the banner and storefront were right there, so it was easy to find.

Mekong Thai banner near the elevator on the 2nd floor of the NS Building
Entrance of Mekong Thai Sejong Naseong Branch

Inside Mekong Thai: ceramic teapots on every table

Walking into Mekong Thai Sejong Naseong Branch, my friend looked around at the interior and said, "This actually looks like it might taste authentic!" haha — coming from someone who'd lived in Malaysia and other Southeast Asian countries, that made me look around the place one more time.

Once we sat down, tea arrived in a ceramic teapot. I even caught the brief moment of pouring it on video 🍵 There were food posters on the wall, fun to look at while waiting for the menu.

Tea served in a ceramic teapot
Restaurant wall with food posters

There was a separate group table in the back too, which looked good for eating with a larger group.

Ordering tom yum fried rice and brisket pho R at Mekong Thai

Menu board above the counter
Menu at Mekong Thai Sejong Naseong Branch

We picked our food looking at the menu board above the counter. My friend was happy to spot tom yum goong on the menu haha. After going back and forth between tom yum fried rice and pineapple fried rice, my friend ordered the tom yum fried rice (₩15,900). I went with the brisket pho R (₩12,900). I was curious about the side dishes too, but we decided to stick to just the two mains this time.

The soy sauce and cheongyang chili combo a friend recommended

My friend, who ordered the tom yum fried rice, asked for soy sauce and cheongyang chili peppers on the side. The staff brought them right over. My friend told me this was how they used to eat it while living in Southeast Asia — a combo I'd never have thought of on my own, so I watched closely how my friend ate 👀

Soy sauce and cheongyang chili peppers requested separately
Tom yum fried rice with soy sauce and cheongyang chili on the side

How did the tom yum fried rice and brisket pho taste?

The tom yum fried rice had that distinctive aroma but wasn't too intense for my taste. If you're trying tom yum for the first time, I think starting with the fried rice version isn't a bad idea.

The broth in my brisket pho was light and clean. Bean sprouts came out separately in a generous portion, so I could add as much as I liked partway through.

The meat was also a good size for eating with kids. According to the restaurant, bean sprouts, lemon, and cilantro are provided on request — just ask the staff if you need any.

A bowl of brisket pho R
Generous serving of bean sprouts on the side

Eating pho the way the table card at Mekong Thai suggests

Instruction card on the table explaining how to eat the pho

There was also a card on the table explaining how to eat the pho. It suggested mixing red chili sauce and black hoisin sauce to dip meat or onions, or adding lemon, cilantro, and cheongyang chili to taste. There was also a method of adding cilantro and cheongyang chili to the broth, finishing with pepper, and pouring it over rice. The broth, it said, is made by simmering brisket for a long time with more than 10 kinds of herbs.

Is Mekong Thai in Naseong-dong, Sejong worth a visit?

This time, coming with a friend who'd lived in Southeast Asia, I learned about the soy sauce and cheongyang chili combo I'd have otherwise walked right past. I also remember visiting with family before, when my kid happily ate the pineapple fried rice and pho — which is why this place comes to mind again when I'm looking for somewhere to eat with kids. If you're in Naseong-dong, Sejong, and want pho or fried rice for lunch, this is worth keeping in mind. There's also a group table in the back worth checking out if you're looking for a spot for a gathering 🌿

A Naseong-dong lunch where a friend who lived in Southeast Asia taught me a new combo 🍜

Closing photo from lunch at Mekong Thai Sejong Naseong Branch

Where it is

Mekong Thai Sejong Naseong Branch메콩타이 세종나성점

133-9 Naseong-ro, NS Building 2F, Sejong, South Korea세종특별자치시 나성로 133-9 NS빌딩2층

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