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    Home » Recipes » Rice, Pasta and Noodle

    14 Best Onigiri Fillings (Japanese Rice Balls)

    Jun 17, 2022 by JURI · This post may contain affiliate links

    5 from 1 vote
    JUMP TO RECIPE JUMP TO VIDEO

    If you have no idea what to put in Onigiri, you can find the answer in this recipe! You will get the 14 best onigiri fillings ideas you want to try!

    12 different onigiri on each plate.

    Look at these amazing Onigiri variations! You can do so much more than just tuna or salmon. The possibilities for onigiri fillings are endless!

    If you're tired of putting the same filling, let's spice up your Onigiri with some new and exciting flavors!

      This recipe is for you if:
    • You love Onigiri (Japanese rice balls).
    • You don't know what to put in onigiri.
    • You want to know variations of onigiri fillings.
    • You are looking for vegetarian onigiri fillings.

    Also, I have a complete guide on how to make delicious rice balls, so please check that out if you want more information about Onigiri!

    Ok, let me walk you through the filling ideas one by one. Let's get started!

    Jump to:
    • About this recipe
    • What to put in Onigiri
    • 🍙6 Popular Onigiri Fillings
    • 🍙8 Vegetarian Onigiri Fillings
    • 📋Ingredients
    • 🔪Instructions
    • What to serve with
    • Storage
    • Thanks For Stopping By
    • 📖 Recipe

    About this recipe

    • Japanese rice balls wrapped with a nori sheet
    • 14 onigiri filling ideas
    • Include vegetarian fillings
    • How to make Onigiri step by step

    What to put in Onigiri

    Here are tons of filling ideas that you can try. I will start with popular fillings and move on to vegetarian fillings. Let's dive in!

    🍙6 Popular Onigiri Fillings

    6 different onigiri on each plate.

    Tuna, salmon, umeboshi, tarako, katsuobushi, and kombu are Japan's most popular Onigiri fillings.

    If you go to Konbini (a Japanese convenient store such as Family mart and Lowson), you definitely find these onigiris easily.

    The following section will take a closer look at each one of them.

    #1 Tuna and mayonnaise

    tuna mayo onigiri.

    The classic combination of tuna and mayonnaise is a perfect match. This one is number one in the onigiri ranking!

    How to prepare: Drain a canned tuna and combine it with mayonnaise. If you like the authentic taste, use Japanese mayonnaise. (either water-packed tuna or oil-packed tuna is ok).

    #2 Salmon

    salmon onigiri.

    Salmon is also a super popular onigiri filling and the second in the onigiri ranking.

    How to prepare: Grill salmon fillet and break it into flakes. You can also buy Japanese salmon flakes at a store.

    #3 Umeboshi

    umeboshi onigiri.

    Umeboshi is pickled plum, which is sour and salty and goes well with plain Japanese rice.

    How to prepare: Remove the seed and chop with a knife to make the paste.

    #4 Tarako

    tarako onigiri.

    Tarako is cod roe and made by marinating with salt, soy sauce, and other seasonings, so it tastes salty.

    How to prepare: Remove from the thin membrane.

    #5 Katsuobushi

    katsuobushi onigiri.

    Katsuobushi (Bonito flakes) contain an umami element and are an essential ingredient for making dashi stock in Japanese cuisine.

    How to prepare: Pour some soy sauce and combine.

    #6 Kombu

    kombu onigiri.

    Kombu tsukudani is flavorful kombu (seaweed) side dish. You can make it but people usually buy it at a store.

    How to prepare: Simmer kombu with sugar, mirin, and soy sauce until tender, or use a store-bought one.

    🍙8 Vegetarian Onigiri Fillings

    8 vegetarian onigiri on each plate.

    Most of the popular fillings above are fish but I've got a great selection of vegetarian options for you!

    Let's take a look at each ingredient.

    #1 Nitamago

    nitamago onigiri.

    Nitamago is a flavored egg made by marinating in a savory sauce. Try this if you're looking for new ways to enjoy your Onigiri!

    How to prepare: Simmer soy sauce, mirin, and sugar to make marinate sauce. Put the sauce and boiled egg in a freezer bag and rest in the fridge for a couple of hours.

    #2 Cheese

    cheese onigiri.

    The perfect comfort food. Cheese and rice, you can imagine what that taste like! Pick your favorite cheese then put it in the fluffy rice.

    How to prepare: Cut some cheese into small pieces.

    #3 Kimchi and Mayo

    kimchi mayo onigiri.

    Kimchi and rice are the perfect pair. The milder taste of mayonnaise makes it even better!

    Traditional Kimchi includes fish sauce so please use vegan Kimchi.

    How to prepare: Add mayonnaise to Kimchi and mix.

    #4 Takana-zuke

    takana onigiri.

    Takana-zuke is pickled Japanese mustard green. It's crunchy, salty, and flavorful. Not only for onigiri filling, but it's also an excellent addition to pasta and fried rice!

    How to prepare: Cut takana-zuke into small pieces.

    #5 Negi miso

    negi miso onigiri.

    This negi miso is so tasty and great for onigiri fillings. It has a rich flavor that you can't go wrong with!

    How to prepare: Chop scallion and mix with miso paste.

    #6 Takuan

    takuan onigiri.

    Two of Japan's most basic staples, rice, and takuan (pickled daikon), are usually eaten separately. But why not have them together in Onigiri?

    How to prepare: Cut takuan into small pieces.

    #7 Nori Tsukudani

    nori tsukudani onigiri

    Nori tsukudani is a traditional condiment made of seaweed simmered in soy sauce. It has a rich and complex flavor which goes well with Japanese rice. This Nori tsukudani brand is the most famous one.

    How to prepare: No preparation is required.

    #8 Tofu Crumbles

    tofu crumble onigiri.

    The last one is tofu! Tofu combined with soy sauce makes for a delicious onigiri filling.

    How to prepare: Stir fry tofu with soy sauce and mirin until lightly crispy.

    📋Ingredients

    Now that you know what to put in Onigiri let's move on to creating your own Onigiri!

    Here are the ingredients (amounts are in the recipe card below).

    Ingredients for onigiri, rice, nori seaweed, salt and filling
    • Cooked rice (short-grain rice)
    • Nori seaweed
    • Salt
    • Filling of your choice (pick one or more!)

    See more details about rice and nori in How to cook Japanese rice on a stove and How to make Onigiri.

    Filling of your choice

    9 different onigiri fillings.

    How to prepare the fillings is described in each onigiri section above. Please scroll up and make sure the instructions.

    🔪Instructions

    Let me show you how to make it step by step, or you can watch this onigiri video.

    how to make onigiri step by step instructions
    1. Cut Nori sheet into three equal pieces 
    2. Prepare salt, a bowl of water, cooked rice, a nori sheet, and a filling of your choice.
    3. In a small bowl, put rice and add filling in the center of the rice
    4. Wet hands, put some salt on your palm, and form a triangular shape
    5. Form like this by pressing gently with your both palms
    6. Wrap it with a nori sheet

    Please watch this How to make onigiri video for forming movement.

    two onigiri with nori seaweed on a plate

    Here you go! Just grab it and enjoy!

    There are many ways to wrap with nori, but this is the basic way.

    Shaping rice might require a little practice, so if you have a hard time making a triangular shape, you can use an onigiri mold! It's easy to shape Onigiri!

    The triangle is the most common shape, but you can also make round onigiri or cylinder onigiri.

    What to serve with

    Do you like Japanese-style meals? Then it's a good idea to serve with karaage (a Japanese fried dish), miso soup and some veggies!

    For instance:

    • Onigiri of your choice
    • Tempeh karaage (vegan)
    • Napa cabbage coleslaw
    • Daikon miso soup
    • Edamame, cherry tomatoes

    Storage

    how to store onigiri.

    If you don't eat them right away, please wrap each Onigiri with plastic wrap like the picture above before they get dry.

    You can store them for a couple of days in the fridge and one month in the freezer.

    When freezing, do not wrap the nori sheet.

    And heat it in a microwave oven right before you eat it (do not thaw it at room temperature as it will get dry).

    Thanks For Stopping By

    2 onigiri rice balls on a plate.

    So, you've got lots of great ideas for what to put in your Onigiri? Good! Now let's make it and let me know which one is best for you!

    Thank you for taking the time to read my blog♡ If you've tried this recipe (or any other recipe on the blog), please give it a star rating below!

    Also, feel free to leave comments if you have any questions. I love hearing from you!

    Chef JA Cooks is a Japanese food blog that shares simple and healthy Japanese home cooking recipes including vegan and vegetarian. From traditional Japanese recipes to modern recipes with step-by-step instructions.

    More Onigiri Recipes You Might Like

    • How to make Onigiri (A step-by-step guide)
    • Simple Onigiri without nori
    • Yaki Onigiri
    • How to cook Japanese rice on the stove

    📖 Recipe

    14 Best Onigiri Fillings (Japanese Rice Balls)

    5 from 1 vote
    Print Pin Rate
    Prep: 5 minutes
    Cook: 10 minutes
    Total: 15 minutes
    Servings: 4 onigiri
    Author: JURI
    If you have no idea what to put in onigiri, you can find the answer in this recipe! You will get the 14 best onigiri fillings ideas that you want to try!
    Prevent your screen from going dark

    Ingredients
      

    • 14 oz Cooked Japanese short-grain rice, 4 small bowls of rice
    • 2 Nori sheets
    • pinch of Salt
    • Onigiri Fillings (choose your favorite one), See onigiri filling section

    Instructions

    • Nori sheet: Cut it into three equal pieces.
    • Prepare a filling of your choice: See ingredients section
    • Prepare ingredients: Prepare salt, a bowl of water, cooked rice, a nori sheet, and filling.
    • Add filling: In a small bowl, put rice and make a little dent in the center, then add 1 or 2 teaspoons of your filling.
    • Water and salt on your hands: Wet both hands with water, put some salt (2 fingertips of salt) on your palm, and rub between your hands.
    • Shape rice: Place the rice on your hand, hold it with both hands, form a triangle shape (or round shape) by pressing gently with your both palms and fingers while rolling it several times.
    • Wrap: Wrap it with a nori sheet.

    Video

    Notes

    • Equipment: Small bowl (This oxo tot small bawl is perfect for small onigiri)
    • Storage: Wrap each one with plastic wrap, put it in a container, and keep them in the fridge for a couple of days and one month in the freezer.
    • Variations: See "6 popular onigiri fillings" and "8 vegetarian onigiri fillings" for onigiri filling ideas.
    • Japanese short-grain rice (starchy and sticky) is ideal for making onigiri. If you are new to the rice, see "How to cook Japanese rice on the stove"
    • The filling amount is up to you, so feel free to add as much or little for your personal preference.
    • The nutrition label is for salmon onigiri.

    Nutrition

    Serving: 1serving | Calories: 183kcal | Carbohydrates: 35g | Protein: 8.8g | Fat: 26g | Cholesterol: 12.8mg | Sodium: 219mg
    Course: Rice
    Cuisine: Japanese
    Keyword: Onigiri fillings
    Did You Make this recipe?Please Leave a star rating!
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    Hi, I'm JURI!

    I'm mama to two energetic children and passionate about making healthy meals for the family. I love sharing simple Japanese home cooking recipes, mostly plant-based recipes (vegan and vegetarian). More about me...

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