Saturday dinner with kids at a Seocho udon restaurant: Kosi Gyodae

In short

Kosi Gyodae Branch is a tonkatsu (pork cutlet) and udon restaurant on Seocho-daero 48-gil in Seocho, Seoul. Arriving at 5:30pm on a Saturday with a child who loves tonkatsu and udon, the family ordered a bukkake (soy sauce udon) and mini tonkatsu set for 14,000 won, two half-and-half katsu sets at 13,500 won each, and an extra kake udon for 3,500 won. With a self-service side dish corner and kids' tableware on hand, Kosi Gyodae Branch made for a satisfying family dinner out.

Visiting Kosi Gyodae Branch, a tonkatsu and udon restaurant in Seocho

Good to know

Hours
Daily 11:00-20:50
Break time
15:00-17:00
Parking
1 space in front of the restaurant on weekdays, 2 on weekends / Hanseong parking lot: 30 minutes free with a meal over 20,000 won
Reservations
Available through Naver
What we ordered
Bukkake udon set 14,000 won, half-and-half katsu set 13,500 won x2, extra kake udon 3,500 won
Self-service corner
Side dishes, small plates and takeout containers are self-serve; refills of pickled radish, kkakdugi and salad
With children
Kids' tableware provided
Price reference
₩14,000 ≈ $10 (2026-09-18)

as written by the visitor on Sep 17, 2026

Our kid's favorite dishes in the whole world are tonkatsu and udon. Our family has basically been to every tonkatsu-and-udon place in the neighborhood (Kkulbogi loves it so much we eat it about once a week). Today I want to introduce Kosi Gyodae Branch, a tonkatsu spot in Seocho that's close to home and has a great variety of set menus.

Visiting Kosi Gyodae Branch, a tonkatsu and udon restaurant in Seocho

Where is Kosi Gyodae Branch, and what about parking and hours?

Kosi Gyodae Branch is on the 1st floor of 32 Seocho-daero 48-gil, Seocho-gu, Seoul. It's open daily from 11:00 to 20:50, with a break time from 15:00 to 17:00 — so plan around that.

  • Parking: 1 spot in front of the restaurant on weekdays, 2 on weekends
  • Hanseong parking lot: 30 minutes free with a meal over ₩20,000
  • Hours: Daily 11:00-20:50 (break time 15:00-17:00)
  • Naver Reservation available
The area around Kosi Gyodae Branch and its entrance
Store info and business hours posted at Kosi Gyodae Branch
The seating atmosphere inside Kosi Gyodae Branch

The menu at Kosi Gyodae: single dishes, set meals, katsudon and gyudon

Kosi Gyodae Branch has everything from single tonkatsu and udon dishes to full sets and one-bowl meals like katsudon and gyudon, so you can pick whatever suits your mood.

Tonkatsu and udon menu board at Kosi Gyodae Branch
Set menu listings at Kosi Gyodae Branch
Page of single udon dishes on the menu
Katsudon and gyudon one-bowl menu items
Additional page of the menu
Table setting at Kosi Gyodae Branch
Interior view of Kosi Gyodae Branch
Seating and aisle view inside the restaurant

Each table has a little drawer with tissues, chopsticks, a spoon, and wet wipes as standard.

Tissues, utensils, and wet wipes in the table drawer

Why Kosi Gyodae works with kids: self-service corner and kids' tableware

Kosi Gyodae Branch has a self-service corner where you can refill side dishes, grab small plates, or take containers yourself, and kids' tableware is all set up too — a great restaurant for eating out with a kid.

When is there a wait at Kosi Gyodae?

Heads up — if you go a little later in the evening, there can be a wait on both weekdays and weekends. We arrived around 5:30pm on a Saturday and there were only two tables left. Weekends probably see more of a wait than weekday evenings since it's popular for family dinners and dates.

What our family of three ordered and what it cost

  • Bukkake udon set (₩14,000)
  • Half-and-half katsu set ×2 (₩13,500 each + extra kake udon ₩3,500)
The full spread ordered by our family of three

The bukkake (soy sauce udon) set, 14,000 won, that won our kid over

First up was the bukkake set our kid ordered. She always orders bukkake udon whenever we go to an udon place, so she's basically a tiny connoisseur haha. Approved by our resident udon fanatic — that's saying something!

The bukkake udon set our kid ordered

Since she loves soy sauce udon so much, we ordered the soy sauce udon & mini tonkatsu set (₩14,000). Pouring the sauce over and mixing it herself is a piece of cake for her now.

The soy sauce udon and mini tonkatsu set

It's a bit much for a kid to finish, but that's fine since mom and dad can polish off the rest — and it's better than ordering too little and leaving her wanting more, so I'd recommend ordering generously haha.

Bukkake udon mixed with soy sauce

Pour on plenty of the soy sauce and mix it up deliciously. A lemon wedge comes on the side too — it's a bit salty, so mixing the lemon in makes it taste even fresher.

A bowl of bukkake udon served with lemon

Half-and-half katsu set with kake udon: two pieces of cheese tonkatsu

The half-and-half katsu kake udon set my husband and I ordered! It comes with two big pieces of cheese tonkatsu plus a regular tonkatsu. We were both starving so we picked the one that fills up the whole table haha.

It's packed with cheese, so if you love a good cheesy flavor, I strongly recommend the cheese tonkatsu. Beyond the cheese, the meat inside is nice and thick too — sooo good.

The half-and-half katsu set with two pieces of cheese tonkatsu

Our kid's bukkake set also came with inari sushi (fried tofu pouch rice), so it was really a hearty, varied spread we could all share.

붓가케 정식에 함께 나온 유부초밥

The kake udon broth was refreshing and deep in flavor — so good. As the weather turns chilly, you naturally start craving a warm broth like this haha. Definitely a menu we'll be having a lot this fall and winter!

A warm bowl of kake udon broth

Salad and side dish refills at the self-service corner

Whenever I come to Kosi, this salad really suits my taste, so I always end up going back for a refill. The sweet-and-tangy salad dressing goes over well with our kid too.

A refilled salad from the self-service corner
Ground sesame tonkatsu sauce with salt and wasabi

Mix plenty of ground sesame into the tonkatsu sauce, then dip the cutlet lightly in salt and wasabi — it doubles the nutty flavor! Personally, dipping in salt is my top pick over the sauce.

The pickled radish and kkakdugi (radish kimchi) are unlimited refills too.

A hearty dinner spread of tonkatsu and udon

Is Kosi Gyodae Branch worth it for a family dinner?

The three of us had a hearty, delicious dinner of tonkatsu and udon for the first time in a while! I feel so lucky to have a spot like this in the neighborhood. If you love chewy udon, you have to go check it out!!

Where it is

Kosi Gyodae Branch코시 교대점

32 Seocho-daero 48-gil, Seocho-gu, Seoul, South Korea서울특별시 서초구 서초대로48길 32 1층

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