
The cutesy home-made lunches that lucky Japanese children take to school are famous worldwide. For the time-pushed or culinarily challenged among us, though, store-bought bento (boxed lunches) can offer great value for money. Convenience store bento, which are hugely popular all over Japan, contain all kinds of delicious goodies like fish, meat, stewed vegetables and pickles, along with rice. When one bento-loving Japanese university student threw caution to the wind and sunk her entire lunch into her miso soup, she discovered that the resulting soupy concoction was even more tasty than she could have imagined! Thus, convenience store bento soup was born!
Here at RocketNews24 we love to try out rice-augmenting recipes and other wacky food combinations, so when a writer from our Japanese sister site heard about this amazing invention, made by heating the entire contents of a convenience store lunchbox in a pot of miso soup, she just had to give it a try! Let’s see how she got on.
For those of you looking forward to trying this one out at home, here’s the recipe:
Ingredients:
- One portion miso soup
- One convenience store bento
(Our RocketNews24 reporter used some lovely-looking home-made soup, but we reckon instant miso soup from a packet would be fine, and probably result in a more authentic student experience anyway.)
▼ Here’s the lunch box we started out with.

▼ And the miso soup:

Directions:
1. Heat the soup in a pan.
2. When the soup comes to a boil, add the bento (chuck everything in the pan – rice, meat, fish, pickles, salad, fried goodies – just not that plastic grass divider thing).
▼Taking the plunge!




3. Simmer until the rice absorbs the flavour of the soup, and your lunch-box soup is ready!

▼Let the rice simmer into soupy oblivion.




Simple enough, right?
▼Our bento soup is ready to try!

First impressions
Our Japanese reporter’s initial reaction to the above recipe was one of shock: “WHHAAAATT?! Put everything in at once? Even the SALAD?!” But in the name of research she persevered, following the recipe to the letter.


Throw everything in the pot
The bento‘s more solid components such as salmon, stewed vegetables, and konnyaku (solidified jelly-type yam cake) maintained their shape and texture well. But the batter from the fried goodies soon fell off and started to dissolve into the soup, looking a bit soggy and unappealing. “Hmmm. It looks like it’ll be easy to digest,” she observed. “But is it gonna taste any good?”
The 64 million yen question
Time to see how our bento soup tastes! The rice, apparently, just comes out tasting vaguely like miso, so no surprises there. It’s the accompanying bits and pieces that are the real winners, though! The lotus root and omelette absorb the flavour beautifully, becoming even fluffier and softer in the soup. “It tastes a bit like chanchan-yaki [a hot-pot dish from Japan’s northern island, Hokkaido]”. Clearly, salmon and miso is a killer combo!
“I thought the dissolved batter was gonna be gross,” adds our reporter, “but actually it gives the soup a nice richness. Maybe it’s not so weird after all!”
▼ Our lunch has gone from this:

▼To this!

The ideal diet food?!
Bento soup, she observes, is ideal for those trying not to over-eat in the winter months. If you usually eat a bento plus dessert for lunch, switching the dessert for soup instead is way more filling! So depending on your choice of bento, this could end up being a delicious, warming AND healthy choice. If miso’s not your thing, you could also use another flavour of soup instead.
Well, what do you think? Is your bento-less soup lacking an injection of pickles and rice? Or is all this food-mixing a bit too much to stomach? Let us know in the comments!
Photos: RocketNews24
[ Read in Japanese ]

Our reporter tries an English take on a Japanese classic: Miso soup…with beef and kale
Easy yet tasty instant miso soup ball recipe will help you clear out your kitchen【SoraKitchen】
How to cook miso soup (the right way) in a few simple steps【RocketKitchen】
Can we replace tofu with cheese in miso soup? We find out【SoraKitchen】
We tried all seven of Muji’s new “Bento of the Day” boxed lunch sets
Japan Extreme Budget Travel! A trip from Tokyo to Izumo for just 30,000 yen [Part 1]
Japanese drugstore sells onigiri at pre-stupid era prices, but how do they compare to 7-Eleven?
7-Eleven Japan’s sakura sweets season is underway right now!
Highest Starbucks in Japan set to open this spring in the Tokyo sky
Sapporo man attempts to rob store with lighter, goes as you’d expect
Amazing photography from the 1860s shows us some of Japan’s very last samurai
This is one of Starbucks Japan’s rarest Frappuccinos, but is it worth tracking down?【Taste test】
Pokémon Master Ball engagement ring case is sure to help you catch your beloved’s heart
Johnson Town: A little piece of America in Japan… where all the residents are Japanese 【Pics】
Japanese village converted into gorgeous open-air museum makes an easy day-trip escape from Tokyo
The 10 most annoying things foreign tourists do on Japanese trains, according to locals
Starbucks Japan releases new sakura goods and drinkware for cherry blossom season 2026
Is Sapporio’s Snow Festival awesome enough to be worth visiting even if you hate the snow? [Pics]
Japan has trams that say “sorry” while they ride around town…but why?
Tokyo Skytree turns pink for the cherry blossom season
Japan’s new “Cunte” contact lenses aren’t pronounced like you’re probably thinking they are
Shibuya Station’s Hachiko Gate and Yamanote Line stairway locations change next month
Yakuzen ramen restaurant in Tokyo is very different to a yakuza ramen restaurant
Starbucks Japan adds new sakura Frappuccino and cherry blossom drinks to the menu
Japan’s newest Shinkansen has no seats…or passengers [Video]
Foreigners accounting for over 80 percent of off-course skiers needing rescue in Japan’s Hokkaido
Super-salty pizza sends six kids to the hospital in Japan, linguistics blamed
Starbucks Japan unveils new sakura Frappuccino for cherry blossom season 2026
Foreign tourists in Japan will get free Shinkansen tickets to promote regional tourism
Take a trip to Japan’s Dododo Land, the most irritating place on Earth
Naruto and Converse team up for new line of shinobi sneakers[Photos]
Is China’s don’t-go-to-Japan warning affecting the lines at a popular Tokyo gyukatsu restaurant?
Survey asks foreign tourists what bothered them in Japan, more than half gave same answer
Japan’s human washing machines will go on sale to general public, demos to be held in Tokyo
Starbucks Japan releases new drinkware and goods for Valentine’s Day
We deeply regret going into this tunnel on our walk in the mountains of Japan
Studio Ghibli releases Kodama forest spirits from Princess Mononoke to light up your home
Major Japanese hotel chain says reservations via overseas booking sites may not be valid
Put sesame oil in your coffee? Japanese maker says it’s the best way to start your day【Taste test】
No more using real katana for tourism activities, Japan’s National Police Agency says
Miso soup capsule toys look good enough to eat, come with recipes to make the real thing!【Photos】
We try “Japan’s best-selling miso soup” and it melts the cold in our bones
Apparently Calpis is good in soup? We try mixing it in with hot pot【SoraKitchen】
DJ Miso Soup & MC Rice lands endorsement deal rapping about dish soap
We try surprisingly delicious Miso Curry Milk Ramen in Aomori
The cutest, must-have bento lunchboxes you can buy and eat on the train
We visited a tempura shop that allowed customers to discard miso soup clam shells on the floor
Beautiful, heartwarming anime short is also a commercial for miso 【Video】
Ignore the name, Kitchen Dive’s bento are cheap and delicious!
We tried a gourmet chocolate bento box worth 2,700 yen, and every bite was worth it
Japanese people list 10 ingredients they never, ever want to find in their miso soup
Canned bento?!? We try out a cheaper alternative to canned Yoshinoya【Taste test】
Official Sailor Jupiter bento boxed lunches being served now at Tokyo anime-themed cafe 【Photos】
Kyoto’s Nishiki Market has great bento boxed lunches, and here are our top 3 picks
When first-try character bentos go wrong 【Photos】
We try hone-jiru (bone soup), a delicious Okinawan specialty hard to find on mainland Japan