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Tuna Mayo Onigiri🍙

Tuna Mayo Onigiri

Soft triangles of seasoned sushi rice with a creamy tuna filling, wrapped in a strip of nori. The classic Japanese bento snack, easy for little hands to hold.

⏱️
Time
40 min
🍽️
Portions
6
⭐
Difficulty
★ Easy
👶
Ages
🍼 🧸 🎒
🍼 1–2 years🧸 2–3 years🎒 3–5 years
🎒 Lunchbox✋ Finger food📦 Make ahead🍬 No added sugar
✅ Checked against AAP · CDC · FDAChoking, salt, sugar, allergens and safe cooking reviewed

🥗 Nutrients per child portion

Estimated — % of what a 1–3 year old needs in a day

📚 Official guidance we checked it against (10)

Last checked 2026-10-17. Estimates, not medical advice.

⚠️ Safety tip: Keep rice balls bite-sized for toddlers (pieces no larger than ½ inch, or offer loose spoonfuls) and use no added salt. Cut the nori into small pieces so it doesn't stick to the roof of the mouth, and use pasteurized mayonnaise. Cool cooked rice within 2 hours of cooking, keep onigiri refrigerated until lunchtime, and eat cold or reheat fully to 165°F/74°C if not eaten within 2 hours, to avoid bacterial growth in the rice.

Contains: Egg · Fish · Sesame

🌱 How it helps them grow

Shaping and holding this little rice triangle is good practice for small hands and helps develop hand–eye coordination and self-feeding skills. The tuna provides protein to support growing muscles, and tasting the crisp, savoury nori is a fun way to try a new texture and flavour early on.

🤓 Did you know?

Onigiri have been shaped by hand in Japan for over 1,000 years — samurai carried them on long journeys, and they're also called omusubi, from a word meaning 'to tie together'!

Tell your little one at the table 🍽️

👶 How to serve it by age

🍼 1–2 years

Break or cut the rice ball into pieces no larger than ½ inch (about 1cm), or simply offer loose spoonfuls of rice and tuna filling rather than a shaped ball. Use no added salt (the filling has none), and crumble the nori into tiny flakes instead of a whole strip so it doesn't stick to the roof of the mouth.

🧸 2–3 years

Make smaller triangles and cut them into bite-sized pieces before serving; use only a small piece of nori and no added salt.

🎒 3–5 years

Serve as a small triangle for your child to hold, with no added salt, cutting it in half first time to check they chew well before swallowing.

🛒 Ingredients

Tap each one when you have it ready ✓

👩‍🍳 Step by step

  1. Wash the rice1
    Step 1 of 5⏱️ 10 min

    Wash the rice

    Rinse the rice in a bowl of cold water, swirling with your hand, then pour off the cloudy water. Repeat 3-4 times until the water runs almost clear, then drain for 10 minutes.

    • 300 g rice
    • as needed water, for rinsing

    ✅ Done when: rinse water runs almost clear

  2. Cook the rice2
    Step 2 of 5⏱️ 12 min

    Cook the rice

    Put the washed rice and the measured water in a pot with a tight lid. Bring to a boil, then lower the heat to the minimum and cook for 12 minutes; turn off the heat and let it sit covered, without opening the lid, for 10 more minutes.

    • 300 g rice
    • 360 ml water

    ✅ Done when: rice is tender and all water is absorbed

  3. Step 3 of 5

    3.Make the filling

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  4. Step 4 of 5

    4.Shape the triangles

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  5. Step 5 of 5

    5.Wrap and pack

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🩺 Foodie Mini follows WHO, AAP and NHS guidance for children aged 1–5. It doesn't replace your paediatrician: check allergies and textures with them.