Lego Bento




When I had exams in my school days, my mom often drew the letters of "Ganbare (Good Luck)!" on my bento with pieces of veggies. 
I appreciated her love expressed in her bento. At the same time, I was bit annoyed especially when I was not prepared enough for the subject.
My kids are still too small to go to school.
However in the future, I'm pretty sure that I'll do the same on their bento as my mom did when they take exams.

This time, I made a Lego Bento for my husband. 

Step 1: Soboro: Seasoned Minced Meat

Soboro mince is very popular in Japanese bento box. We use minced chicken, beef, white fish or shrimp (but only one at a time). 
After seasoning with sugar and soy sauce, the sweet and salty soboro-meat goes perfectly with rice. We often top it on the rice with densely scrambled egg, as seen in the photo below.

Ingredients of Beef Soboro:
  • 100g minced beef
  • 1 tablespoon of grated ginger
  • 1 tablespoon of sugar
  • 1 tablespoon of mirin (sweetened sake)
  • 1 tablespoon of soy sauce
  • 1/2 teaspoon of salt
  • 100cc water
  1. Add beef, ginger, mirin sauce, water and sugar into a small pan. Cook them at medium temperature while stirring often for 10-12 mins.
  2. When the sauce becomes translucent, add soy sauce and salt. Cook another 10 mins.
Important Point
Japanese cuisine often combines soy sauce seasoning with sugar or mirin sauce to deepen the taste. In this salty-sweet combination sugar must be added first, and soy sauce second. If the sequence is reversed, the dish just tases of soy sauce.

This is because sugar molecules are much larger than salt molecules. If ingredients are seasoned with sugar first there remains space to absorb salt in the cells. In the opposite order, salt is absorbed densely, leaving no space for sugar. (Please refer to the illustration of this site:

Step 2: Making Lego Logo

Making Lego Logo is fun.

Ingredients for three logo layers
  • Sliced cheese
  • Seaweed black paper
  • Egg

  1. Print out 3 pieces of Lego Logos and cut out the background of each 
  2. For the yellow layer, beat the egg and thinly spread on the heated pan. Cook it for 2 mins and take it aside till it gets cold
  3. Cut out each layer with the prepared paper logo.

Step 3: Leek Lego

I make this leek dish for the garnish of roast beef or roast lamb. This is served in cold. So, I thought it would be nice for bento too. 

  • 1-2 Leek, remove the top green part
  • 1 clove of garlic
  • 1/2 teaspoon of salt
  • 1 tablespoon of olive oil
  • 100cc of water
  • 4-5 sugar snaps for the Lego dotts

  1. Heat the pan at medium temperature, spread olive oil and fry garlic and leek for 2-3 mins
  2. Add water and bring it to boil. Close the lid and gently boil for 15-20 mins until the leek gets tender.

Directions of Leek Lego
  1. Once the leek gets cool, wrap it with a cling film
  2. Prepare square piller (about 2cmx2cm square in 20cm length) with a sheet of cardboard or thick strong paper
  3. Prepare Lego Ruler kept in a clear file (2.5cmx5cm cells, please refer Lego Cake
  4. Fit the leek into the square piller. It there is a space, wrap the leek with a kitchen paper to fill the gap. Bind the piller with rubber bands in both edges. Leave it for at least 20 mins
  5. Boil sugar snaps and take it aside to get them cool
  6. Make the Lego dots with cooked sugar snaps by using a straw (that was stolen from McDonald's. Please refer Lego Cake)
  7. Cut the square pillar leek into 5cm and add the dots on the top to make it Lego.

Step 4: Salad Lego

I chose Cyprus Halloumi cheese, ham, cucumber with smoked salmon for Lego Salad. 

  1. Cut  ham, cheese and cucumber into square pillars by using Lego Ruler,
  2. Make dots by using a straw,
  3. Flatten the smoked salmon evenly by using a rolling pin to wrap cucumber.

Step 5: Pack Legos

Pack Leek, Cheese, Ham, Smoked Salmon Legos. I filled the gap with mini tomatoes.
In the Lego Logo layer, fill the cooked rice and spread beef soboro evenly over the rice. Add the layers of Lego logos on the top.



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    18 Discussions


    3 years ago

    When I went to Japan with my family we saw some bento boxes and they looked yummy. Then 6 months later im at home looking at instructables and... this! This is the coolest thing ever!


    6 years ago on Introduction

    awesomely sexy! Wish I can take this to office! My colleagues will freak!


    6 years ago on Introduction

    i had to look up bento which means lunch and soboro which is one of the dishes you made here


    6 years ago on Introduction

    I appreciate all of your instructables! I especially loved this one! So creative and fun! I am going to visit my daughter very soon and I think I will try making a lunch for my son-in-law. He would appreciate it very much! It will be great fun. If I do it I will share with you. Thanks.

    1 reply

    Thank you! Thank you!!
    As I repeat somewhere, I recommend to use cooked root veggies and beans for Lego-dots.
    Smoked salmon and leeks are too difficult to cut out with a straw.
    I'm looking forward your report!!

    I love bento... and legos.... MUST HAVE!!!!! i've always heard that Japanese lunch boxes are intricate and creatively fun... but this is sooooooooooooooo good!

    1 reply

    Thank you! Thank you!
    Yes, Japanese love to create a cosmology in a limited space.
    Then they loose the control to the rest of the space.
    (Perhaps that's why their prime minister keep changing.)
    Sorry, silly reply.