Did you get a chance to try making the self–gimbap I shared last time? If you did, do you happen to have any leftover fillings—especially the tuna mayo? If you have some tuna mayo left, how about trying something different this time? Let’s make Samgak–gimbap (triangle kimbap)!

Unlocking the $1 Mystery: Meet Samgak-Gimbap!
Samgak–gimbap is a smart, $1 K-fast food that you can easily find at any Korean convenience store. It is a type of gimbap where rice and various fillings are shaped into a triangle and wrapped in crispy seaweed.
The real “kick” (the secret touch) is the incredibly clever plastic packaging designed to keep the seaweed crispy. It ensures the seaweed and rice don’t touch until the very moment you open it, allowing you to enjoy that perfect crunch the second you take a bite.
For those who are too busy for a proper breakfast, it’s common to grab one on the way to work or school. It’s also the perfect partner for a cup of instant noodles, making for a quick and satisfying meal.
The Perfect Choice for Breakfast and Lunch Boxes
This morning, since it was the first day of the new semester, I made Samgak–gimbap to quickly solve my son’s busy morning before he headed out to school. The ingredients are very simple and it’s easy to make, plus they are perfect for carrying on the go. If you are a parent wondering, “What should I pack for lunch today?”, I highly recommend giving this a try. It’s a satisfying meal that even always-hungry teenagers enjoy as a delicious snack.
Now, I’m going to make Samgak–gimbap using the leftover tuna mayo from the self–gimbap we made last time.



Ingredients for Samgak-gimbap
- 1 bowl of steamed rice (or instant rice)
- Seaweed for Samgak-gimbap and a triangle mold
: When you buy Samgak–gimbap seaweed for the first time, make sure to get a set that includes the triangle mold. (Sometimes, there are refill packs that only contain the seaweed, so be careful!) - 1 can of tuna and 3 tablespoons of mayonnaise
- Sesame oil and a pinch of black pepper






- Add a tablespoon of sesame oil to the warm rice and mix well.
- Drain the oil from the tuna, then mix it with 3 tablespoons of mayonnaise and a pinch of black pepper.
: You can use any filling you like instead of tuna. As long as it is seasoned, anything works! - Spread out the Samgak–gimbap seaweed (still in its plastic wrap) on a flat surface.
: Make sure the side with the printing or illustrations is facing down. - Place the triangle mold on top of the seaweed.
- Fill about half of the mold with rice and press it down evenly.
- Add a generous spoonful of tuna mayo in the center, then cover it with another layer of rice.
- Press the rice firmly to fit the shape of the mold.
: You need to use enough rice and press it down well to get a pretty, well-defined triangle shape. (Does it seem like a lot of rice? That’s exactly why just one Samgak–gimbap is so filling and satisfying!)
Now it’s time to wrap the rice, which we’ve just removed from the mold, with the seaweed. This part might be a bit confusing, so I’ve taken photos of every single movement for you to follow along closely. Please take a look!







- Place the triangle-shaped rice on the upper half of the seaweed sheet.
: Position the tip of the triangle at the center of the top edge of the seaweed.
2. Fold the bottom half of the seaweed sheet over the rice.
: Pull the bottom part of the plastic wrap up to cover the front of the triangle rice.
3. Fold down the top corners of the seaweed on both sides.
: Press the corners of the seaweed along the sides of the rice to wrap it snugly.
4. Fold the left and right flaps of the plastic wrap toward the back.
: Bring the sides of the wrap around to the back of the triangle to hold everything together.
5. Secure the wrap with the enclosed sticker
: Use the sticker provided in the kit to fix the flaps in place on the back. Now your Samgak–gimbap is perfectly sealed and stays crispy!


Now, your Samgak–gimbap is ready! What do you think? Doesn’t it look just like the ones sold at the store? Now, you can simply tuck it into your bag and head out, or enjoy it with a warm bowl of light miso soup.
Wait, are you hesitant because you’re not sure how to unwrap this tricky plastic packaging?
How to Open Triangle Kimbap

Now, here is the secret to opening it perfectly without breaking the seaweed! Just follow the numbers 1, 2, and 3 on the packaging.
- First, grab the red tab marked with “1” at the top of the triangle. Pull it straight down all the way to the back and around to the other side. This splits the plastic wrap into two halves.
- Next, hold the rice gently with one hand and grab the corner marked with “2”. This is the most important part
: pull the plastic wrap outward very slowly and gently. You want to slide the plastic out while making sure the seaweed stays tucked neatly inside against the rice. - Finally, do the same for the corner marked with “3”. Again, pull it out slowly and carefully so the seaweed doesn’t get caught or torn.
If you do it right, the crispy seaweed will perfectly wrap around the warm rice, and you’ll have a professional-looking Samgak–gimbap ready to eat!


So, there you have it! A perfect, crunchy, and hearty Samgak–gimbap made right in your own kitchen. Whether it’s for a busy student heading out for the first day of school, like my son this morning, or for your own quick office lunch, this little triangle is packed with more than just rice and tuna—it’s packed with care and energy to start the day right.
Don’t be discouraged if your first wrap isn’t perfect; with a little bit of practice, you’ll be unwrapping that plastic like a local in no time! I hope this simple recipe brings a small joy and a full stomach to your busy mornings.
If you tried making this at home, let me know what your favorite filling is! Was it the classic tuna mayo, or did you try something new with SPAM?
Wishing you all a day as crisp and satisfying as a fresh Samgak–gimbap!
Until next time,
MJay
▶ Need more breakfast ideas? Check out the link below for more “5-minute miracle” recipes to save your busy mornings!

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