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42 types · 6 families · choose on the road

Onigiri guide: 42 rice balls to choose

Open one triangle and discover rice, nori, fillings, regional forms and the small decisions that make onigiri useful on a journey.

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ONE RICE BALL · MANY JAPANS

One rice ball, many Japans.

What goes inside the rice? Should the nori stay crisp until the last second, soften around the grains, disappear entirely or give way to a regional leaf? Onigiri looks simple, yet it compresses rice, preservation, home life, retail design and local memory into one handheld food.

42
types with individual guides
6
taste and form families
EN / JA
one shared content model
Hands open a salmon onigiri at a home table, revealing individual rice grains and filling
Original Local Japan editorial photography: a human-made shape and cutaway, not a branded product.

07:10 · BEFORE THE SHINKANSEN

Choose among similar triangles in 30 seconds.

Begin with the large filling name. Next identify whether the nori is kept separate, already touching the rice or absent. Finish with the use-by date, storage line and allergen information. A photograph alone can hide small but important differences such as mentaiko versus tarako, or kombu versus okaka.

  1. 01Shio musubiClean rice sweetness edged with salt
  2. 02SalmonSalty, clean and familiar
  3. 03Tuna mayonnaiseCreamy, mild and gently savoury
  4. 04UmeboshiBrightly sour and distinctly salty
  5. 05Soy-sauce yaki onigiriToasty, salty and caramelised

FIND A FIRST BITE

Narrow 42 types with one useful cue.

Filtering stays on this page and the selected value is not sent to Analytics. “Looks plant-forward” is a shortlist for checking ingredients, never a dietary or allergen guarantee.

42 types shown

Seafood favourites

Seafood favourites

8 types

Salty, savoury and often easy to spot by a fish name.

01
Flaked grilled salmon inside white rice
さけ・しゃけ

Salmon

Salty, clean and familiar

Texture
Soft flakes against springy rice
Label cue
Look for or しゃけ; products may use different salmon species and seasoning.
Open filling & story
02
Tuna dressed with mayonnaise in the centre
つなまよ

Tuna mayonnaise

Creamy, mild and gently savoury

Texture
Soft filling with moist rice
Label cue
Look for ツナマヨ, チキン or tuna-and-mayonnaise wording; brand language varies.
Open filling & story
03
Seasoned cod roe tucked into the centre
めんたいこ

Spicy cod roe

Salty, marine and chilli-warm

Texture
Fine roe grains that loosen through rice
Label cue
Look for 明太子; 辛子明太子 explicitly signals chilli seasoning.
Open filling & story
04
Salt-cured cod roe, sometimes grilled
たらこ

Salted cod roe

Direct saltiness with a gentle sea flavour

Texture
Fine grains; grilled versions become firmer
Label cue
Look for たらこ or 焼たらこ; it is not automatically the same heat as mentaiko.
Open filling & story
05
Bonito flakes seasoned with soy sauce
おかか

Okaka bonito flakes

Smoky, savoury and soy-forward

Texture
Fine soft flakes that cling to rice
Label cue
Look for おかか or かつお; the friendly name hides a fish ingredient.
Open filling & story
06
Large seasoned salmon roe held inside rice
いくら

Salmon roe

Rich, briny and often soy-seasoned

Texture
Juicy beads that pop
Label cue
Look for いくら; price and amount often differ from everyday fillings.
Open filling & story
07
A firm piece or flakes of grilled mackerel
やきさば

Grilled mackerel

Oily, smoky and assertively savoury

Texture
Firm flakes with a moist edge
Label cue
Look for 焼さば or ; the fish may sit across the top or inside.
Open filling & story
08
Tiny dried fish with aromatic sansho pepper
ちりめんさんしょう

Baby sardines & sansho

Salty with a citrusy, tingling spice

Texture
Tiny chewy fish among rice grains
Label cue
Look for ちりめん山椒; 山椒 is aromatic and numbing, different from chilli heat.
Open filling & story

Meat & egg

Meat & egg

6 types

Richer fillings that often behave like a compact meal.

09
A piece of seasoned fried chicken in rice
からあげ

Fried chicken

Juicy, savoury and often garlicky

Texture
Crisp coating softens inside rice
Label cue
Look for 唐揚げ or 鶏唐; sauce and mayonnaise versions are separate products.
Open filling & story
10
Sweet-savoury minced chicken scattered inside
とりそぼろ

Chicken soboro

Gentle soy sweetness

Texture
Fine, crumbly and easy to bite
Label cue
Look for 鶏そぼろ or とりそぼろ; egg may be mixed into some versions.
Open filling & story
11
Thin beef simmered with ginger and soy
ぎゅうしぐれに

Beef shigureni

Sweet soy, ginger and deep meat savour

Texture
Tender strands with a concentrated sauce
Label cue
Look for 牛しぐれ or 牛肉; it is usually a richer premium filling.
Open filling & story
12
Saucy grilled meat folded into rice
やきにく

Yakiniku (grilled meat)

Sweet, garlicky and richly savoury

Texture
Chewy slices and moist sauce
Label cue
Look for 焼肉, 牛焼肉 or 焼肉マヨ; the meat and sauce differ by product.
Open filling & story
13
Minced or sliced pork cooked with miso
ぶたみそ

Pork miso

Deep, sweet-salty and fermented

Texture
Dense mince or tender small pieces
Label cue
Look for 豚みそ or 肉みそ; 肉みそ does not always specify pork.
Open filling & story
14
Soft scrambled egg crumbs mixed through rice
たまごそぼろ

Egg soboro

Mild, softly sweet and comforting

Texture
Fluffy crumbs against springy grains
Label cue
Look for 玉子, or たまご; Japanese labels use more than one character form.
Open filling & story

Pickles & vegetables

Pickles & vegetables

8 types

Bright, sour or earthy choices—still check dashi and seasoning.

15
A salted, pickled ume fruit at the centre
うめぼし

Umeboshi

Brightly sour and distinctly salty

Texture
Soft fruit paste; a stone may remain
Label cue
Look for or 梅干; 種あり means a stone may remain.
Open filling & story
16
Kelp simmered dark with soy and sweetness
こんぶつくだに

Kombu tsukudani

Deep soy savour with gentle sweetness

Texture
Soft-chewy strips
Label cue
Look for 昆布 or こんぶ; おかか昆布 also contains fish flakes.
Open filling & story
17
Chopped pickled mustard greens inside or mixed
たかな

Takana greens

Salty, leafy and sometimes chilli-hot

Texture
Fine crunchy stems among soft rice
Label cue
Look for 高菜; 高菜明太 adds spicy cod roe and 高菜炒め may use oil or stock.
Open filling & story
18
Chopped pickled leafy greens folded through rice
のざわな

Nozawana greens

Freshly salty with a mild mustard-green edge

Texture
Light crunch from leaf stalks
Label cue
Look for 野沢菜; additions such as わさび or じゃこ change both flavour and ingredients.
Open filling & story
19
Yellow pickled daikon chopped inside rice
たくあん

Takuan radish

Salty, gently sweet and pickled

Texture
A clear, crisp bite
Label cue
Look for たくあん or 沢庵; colours and sweeteners vary by product.
Open filling & story
20
Ume paste with fragrant red or green shiso
うめしそ

Ume & shiso

Sour, salty and vividly herbal

Texture
Soft paste with fine leaf pieces
Label cue
Look for 梅しそ or 梅紫蘇. ゆかり and 大葉 indicate shiso, but neither name alone proves that ume is included.
Open filling & story
21
Thin burdock and carrot cooked in soy
きんぴらごぼう

Kinpira burdock

Earthy, sweet-soy and sometimes chilli-warm

Texture
Fibrous, crisp-chewy strips
Label cue
Look for きんぴら or ごぼう; sesame is a common finishing ingredient.
Open filling & story
22
Green soybeans and salted kelp mixed through rice
えだまめしおこんぶ

Edamame & salted kelp

Fresh bean sweetness and concentrated salt

Texture
Firm beans among soft grains
Label cue
Look for 枝豆 and 塩こんぶ; the two ingredients may be listed separately.
Open filling & story

Rice first

Rice first

6 types

Plain salt, grains, beans and seasoned mixed rice.

23
Rice and salt with no hidden filling
しおむすび

Shio musubi

Clean rice sweetness edged with salt

Texture
Every grain and shaping pressure is exposed
Label cue
Look for 塩むすび, 塩おにぎり or 銀しゃり; check whether nori is included.
Open filling & story
24
Small wakame pieces mixed through seasoned rice
わかめごはん

Wakame rice

Lightly salty with a soft sea aroma

Texture
Tender seaweed between rice grains
Label cue
Look for わかめご飯 or わかめ; sesame may be visible on the surface.
Open filling & story
25
Dark hijiki and small vegetables mixed through rice
ひじきごはん

Hijiki mixed rice

Earthy, soy-savoury and gently sweet

Texture
Soft seaweed with small vegetable bites
Label cue
Look for ひじき; carrot, fried tofu or beans may be part of the mix.
Open filling & story
26
Several small ingredients cooked or mixed with rice
ごもくごはん

Gomoku mixed rice

Layered soy savour with gentle sweetness

Texture
Many small bites in one soft rice ball
Label cue
Look for 五目; the word means a varied mixture, not one fixed list of five ingredients.
Open filling & story
27
Mushrooms cooked with seasoned rice
きのこたきこみ

Mushroom takikomi rice

Woodland aroma and light soy savour

Texture
Tender mushroom pieces among moist rice
Label cue
Look for きのこ, 舞茸, しめじ or 松茸; the named mushroom changes price and aroma.
Open filling & story
28
Glutinous rice coloured by red beans
せきはん

Sekihan red-bean rice

Mild bean sweetness with salty sesame

Texture
Chewy sticky rice and firm beans
Label cue
Look for 赤飯; ごま塩 may be included in a separate packet.
Open filling & story

Regional forms

Regional forms

8 types

Leaves, kelp, tempura and local seasonings turn the form into a map.

29
A small shrimp tempura wrapped with rice and nori
てんむす

Tenmusu

Sweet-savoury batter, shrimp and salt

Texture
Soft rice, springy shrimp and softened crust
Label cue
Look for 天むす; the shrimp tail may be visible from the top.
Open filling & story
30
A large rice parcel wrapped in pickled takana leaf
めはりずし

Mehari-zushi

Salty, leafy and gently fermented

Texture
A broad tender leaf around firm rice
Label cue
Look for めはりずし; despite the name, it is usually discussed as a regional rice parcel rather than modern vinegared sushi.
Open filling & story
31
Rice wrapped or mixed with broad pickled Hiroshima greens
ひろしまなむすび

Hiroshima greens musubi

Clean saltiness and a mustard-green aroma

Texture
Tender leaf with a light stalk crunch
Label cue
Look for 広島菜; it identifies the regional vegetable, not a generic spinach leaf.
Open filling & story
32
A large rice ball completely wrapped in dark iwa-nori (rock seaweed)
ばくだんおにぎり

Oki bakudan onigiri

Mineral-rich seaweed and simple rice

Texture
Thick, yielding seaweed around dense rice
Label cue
Look for ばくだんおにぎり in the Oki Islands; elsewhere “bakudan” can mean a different large or mixed item.
Open filling & story
33
Rice, fried egg and canned pork in a broad nori wrap
ぽーくたまご

Okinawa pork & egg

Salty meat, mellow egg and nori

Texture
A layered, sandwich-like bite
Label cue
Look for クたまご or ク玉子; optional miso, tuna or fried fillings create many versions.
Open filling & story
34
Rice seasoned with pork, fried tofu and bonito stock
ごんじゅう

Gonju

Meaty, soy-savoury and stock-rich

Texture
Mixed rice with small tender pieces
Label cue
Look for ごんじゅう in southern Chiba; it may be shaped as a rice ball or served as seasoned rice.
Open filling & story
35
A rice ball grilled with sweet miso on its surface
けんさやき

Kensan-yaki

Toasty rice and sweet fermented miso

Texture
Crisp edges over a soft centre
Label cue
Look for けんさ焼き in Niigata; it may not appear in an ordinary convenience-store onigiri case.
Open filling & story
36
Rice coated in feathery shaved kelp
とろろこんぶ

Toyama tororo-kombu

Tangy, marine and softly savoury

Texture
Soft fibres that melt against rice
Label cue
Look for とろろ昆布 or 昆布おにぎり in Toyama; this is a coating, unlike a hidden tsukudani centre.
Open filling & story

Grilled & modern

Grilled & modern

6 types

Crisp surfaces, new shapes and familiar modern flavours.

37
Rice grilled until browned with soy sauce
しょうゆやきおにぎり

Soy-sauce yaki onigiri

Toasty, salty and caramelised

Texture
Crisp shell and soft steaming centre
Label cue
Look for 焼おにぎり or 醤油焼き; frozen, shop and grilled-to-order versions heat differently.
Open filling & story
38
Rice grilled under a layer of miso
みそやきおにぎり

Miso yaki onigiri

Sweet-salty, fermented and deeply toasted

Texture
Sticky glaze over a crisp edge
Label cue
Look for 味噌焼き or みそ焼き; regional miso and sweetening create different colours.
Open filling & story
39
A flat nori parcel folded around rice and layered fillings
おにぎらず

Onigirazu

Changes completely with the layered filling

Texture
A broad sandwich-like cross-section
Label cue
Look for おにぎらず; the visible cross-section helps identify fillings but not sauces or shared equipment.
Open filling & story
40
Cheese paired with soy-seasoned bonito flakes
ちーずおかか

Cheese okaka

Smoky, creamy and sharply savoury

Texture
Melting or firm cheese with soft flakes
Label cue
Look for ズおかか; heated products and chilled cheese cubes feel different.
Open filling & story
41
Curry-seasoned rice or a curry centre
かれーおにぎり

Curry onigiri

Warm spice, savoury depth and often mild sweetness

Texture
Seasoned grains; filled versions can be saucy
Label cue
Look for カレー; 焼きカレー, or indicate very different versions.
Open filling & story
42
Fried rice compressed into a portable shape
ちゃーはんおにぎり

Fried-rice onigiri

Roasted soy, scallion and savoury oil

Texture
Loose seasoned grains held more gently
Label cue
Look for 炒飯 or チャハン; meat, egg and seasoning differ even when the colour looks similar.
Open filling & story

THE PRINTED ARROWS WIN

Let that package’s 1–2–3 arrows lead.

A common “te-maki” wrapper keeps rice and nori apart until opening; a “jika-maki” wrapper lets them touch from the start. Packaging still differs by company and item. The diagram explains the idea, not one universal operation—follow the printing on the wrapper in front of you.

  1. Find the top tabCheck the number and arrow direction.
  2. Pull the centre as printedDo not force it in the opposite direction.
  3. Remove each sideKeep the rice centred on the nori.

CARRY · EAT · DISCARD

A small meal still has a time and place.

Carry it

Follow the product’s storage line and use-by date. For handmade rice balls, use clean wrap or gloves, avoid sealing while hot and use an ice pack and insulated bag for longer carrying. Ume filling does not make warm storage automatically safe.

Eat on a train

Food is often possible on long-distance trains with seat tables, while it is generally avoided on crowded commuter services. Follow signs and operator guidance, then consider smell, sound, nearby passengers and the wrapper you must carry away.

Read ingredients

Ume, kelp or vegetables may still come with bonito stock, wheat in soy sauce, sesame or shared production. Never infer “vegetarian,” “gluten-free” or “allergen-free” from the photograph or category; decide from current packaging and venue information.

RICE BEFORE THE TRIANGLE

A history that resists an “oldest onigiri” headline.

A roughly 2,000-year-old lump of rice has been found, but its purpose is uncertain. Heian-period tonjiki is often treated as a prototype. Today, onigiri and omusubi usually name the same food, while the words’ origins and supposed shape-by-region rules have competing explanations. The long story becomes more interesting when evidence and folklore stay visibly separate.

SHOW THIS

Ask about one filling and one allergen at a time.

このおにぎりの具は何ですか? 原材料とアレルギー表示も見せてください。

What is inside this onigiri? Please also show me the ingredients and allergy information.