Bookable weekday tonkatsu lunch in Yeonsinnae, Seoul: Katsu Monster
In short
Katsu Monster Yeonsinnae Branch is a Korean-style fusion tonkatsu restaurant in Yeonsinnae, Eunpyeong-gu, Seoul, best known for its triple katsu: loin, tenderloin and cheese katsu on one plate. The writer ordered the triple katsu with added curry for lunch and found that switching between the three cutlets kept every bite interesting down to the last piece. With weekday reservations at opening time and walk-ins both accepted, the triple katsu at Katsu Monster is a safe pick for a tonkatsu lunch in Yeonsinnae.

Good to know
- Getting there
- Yeonsinnae Station Exit 4 · 1-min walk (store listing, Oct 6, 2026)
- Signature dish
- Triple katsu (loin, tenderloin and cheese katsu on one plate)
- Comes with
- Salad, rice and miso soup
- Writer's add-on
- Curry
- Other menu items
- Rice bowls, soba and cold buckwheat noodles
- Reservations
- Weekday reservations at opening time; walk-ins accepted even when reservations are closed
- Address
- 1F, 4-1 Yeonseo-ro 28-gil, Eunpyeong-gu, Seoul
as written by the visitor on Jul 16, 2026

Why I picked tonkatsu for lunch in Yeonsinnae
When lunchtime rolls around, there's one worry that always comes up first. Lunch is an important meal that kicks off the day, so I want something filling and satisfying. And tonkatsu (breaded pork cutlet) never fails. A crispy coating with juicy meat inside, what a combo! It's a dish everyone loves, young and old.


Lately there are more specialty places that don't just do one plain cutlet but play with different cuts and personality, so there's a lot more to choose from. And if you're hunting for a good lunch spot in Yeonsinnae, a menu where you can try several kinds of katsu at once is even more tempting. So today I'm introducing Katsu Monster (카츠몬스터), popular for its triple katsu, which lets you taste loin, tenderloin and cheese katsu in a single bowl.

How do you pick a good tonkatsu place?
When choosing a good tonkatsu place, it's better to look at whether they cook to order, the quality of the meat, how well the frying is done, menu variety and the atmosphere, rather than the number of reviews. If you eat out a lot, you realize some criteria matter more than review counts, and since a lunch can shape your whole day's mood, a few things are worth checking.
Check whether they cook to order
If tonkatsu is fried ahead of time, the juices drain out and the coating goes soggy. The sooner a place fries it after you order, the more you get both crispness and juiciness.
Quality of the meat
With good tonkatsu, you remember the meat before the sauce. Places that use fresh raw pork have a different aroma and texture to the meat itself.



How well the frying is done
A good tonkatsu place coats the meat thinly and crisply to bring out its flavor, rather than just piling on thick batter.
Variety on the menu
If there are plenty of choices to suit different tastes, like loin, tenderloin and cheese katsu, the people dining with you will be happier too.
The atmosphere
If it's a clean space where you can comfortably eat alone, with friends or on a date, you're more likely to come back.



What kind of place is Katsu Monster Yeonsinnae Branch?
Katsu Monster is a Korean-style fusion tonkatsu restaurant that serves not only tonkatsu but also rice bowls and soba. Its top principle is using fresh ingredients, and I was impressed by the dishes, which are based on Japanese tonkatsu cooking methods but finished to suit Korean tastes.


Katsu Monster pays attention to every single ingredient used in the shop, and reportedly keeps researching its recipes to balance crispy frying with juicy meat. Thanks to the friendly staff and the clean atmosphere, it's a comfortable place for everyone, from solo diners to families, friends and couples.
Can you make reservations at Katsu Monster Yeonsinnae Branch?
On weekdays you can reserve for opening time, which makes it easy to use your lunch break efficiently, and even when reservations are full, walk-ins are welcome, so you can drop by without worry.

How does the triple katsu taste? Loin vs tenderloin vs cheese katsu
One of the most popular dishes at Katsu Monster is the triple katsu. Its biggest strength is that you can taste three tonkatsu with different charms on one plate.
The loin in the loin katsu has a good amount of fat and juice, giving the most classic tonkatsu flavor. One bite releases a nutty meaty aroma, and the more you chew, the more the mild flavor comes through.
The tenderloin in the tenderloin katsu is lean and soft. It's cooked moist rather than dry, easy to eat, and especially popular with people who like a mild taste.


In the cheese katsu, rich cheese stretches out long from inside the crispy coating, adding lots of flavor. The deep cheesiness paired with tender meat is something kids and adults alike would enjoy. Alternating among the three, each with a different texture and flavor, you don't get tired of it until the very last piece, which is the triple katsu's biggest advantage.


Adding curry to the triple katsu, and what else goes well with it
Katsu Monster's tonkatsu comes with salad, rice and soup, so it makes a balanced meal. This time I added curry, but if you order cold soba or soba too, the combination of crispy tonkatsu and a cool noodle dish makes the meal even more satisfying.
It works for a hearty lunch and just as well for dinner, and if you go with a group, ordering a variety of dishes to share is fun too.

Why I recommend the triple katsu for lunch in Yeonsinnae
Tonkatsu may seem like a common dish, but how satisfying it is depends a lot on the ingredients and how it's fried. Through fresh ingredients, careful cooking and a varied menu, Katsu Monster offers a meal that anyone can be happy with.
The triple katsu in particular lets you experience the deep meatiness of loin, the tenderness of tenderloin and the nuttiness of cheese katsu all at once, so it's a good recommendation even for first-time visitors. If you're looking for a filling lunch in Yeonsinnae, trying the triple katsu, with the charms of several kinds of tonkatsu on one plate, seems like a good choice.
Where it is
1st floor, 4-1 Yeonseo-ro 28-gil, Eunpyeong-gu, Seoul, South Korea서울특별시 은평구 연서로28길 4-1 1층 카츠몬스터 연신내점





