Name: Onigirazu Recipe
Prep time: 25 min
Cook time: 15 min
Total time: 40 min
Ingredients: 2 cups uncooked short-grain Japanese rice (sushi or Calrose); 2 1/4 cups water; 2 tablespoons rice vinegar; 1 tablespoon sugar; 1 teaspoon fine sea salt; 4 sheets roasted sushi nori (yaki nori), full size; plastic wrap or parchment sheets, for wrapping; 1 can tuna in water, drained well; 2-3 tablespoons Japanese mayo (or regular mayo); 1 teaspoon soy sauce; 1/2 teaspoon sesame oil; 1 cup cooked chicken, shredded or chopped; 2 tablespoons mayo; 1 teaspoon soy sauce (for chicken); 2 large eggs; 1 teaspoon soy sauce (for eggs); 1 teaspoon neutral oil, for the pan; 1 small cucumber, sliced into thin sticks; 1 small carrot, peeled and cut into matchsticks; 4 leaves lettuce or a handful of baby spinach; 1 avocado, sliced; 2 tablespoons furikake rice seasoning; optional quick pickles, kimchi, or cooked mushrooms; soy sauce, to taste; sriracha or Japanese chili oil, to taste; extra sesame oil, to taste

Onigirazu Recipe tastes like the best parts of sushi and a rice bowl wrapped into a neat, hand-held square that you can eat on the go. It works perfectly for busy folks, lunchbox lovers, and meal preppers, and you can finish it in about 35–40 minutes, including prep and cooking. I first packed these in my own work lunches a decade ago, and my coworkers kept “taste testing” them until my box looked suspiciously empty.

Why Choose This Onigirazu Recipe

This Onigirazu Recipe keeps things simple, flexible, and weeknight friendly. You use easy pantry shortcuts like canned tuna or rotisserie chicken, and you can swap fillings based on what you already have in the fridge.

The method stays very forgiving, so beginners feel confident and experienced cooks can customize like crazy. You also skip any fussy sushi rolling and still get that satisfying seaweed, rice, and filling combo.

“This Onigirazu Recipe turned my boring lunches into something I actually look forward to eating every day. ★★★★★”

Ingredients You’ll Need

Rice & Seasoning

2 cups uncooked short-grain Japanese rice
- Use sushi rice or Calrose rice for the right stickiness.
2 1/4 cups water
2 tablespoons rice vinegar
1 tablespoon sugar
1 teaspoon fine sea salt

Nori & Wrap

4 large sheets nori (full-size sushi nori)
- Choose roasted nori labeled “yaki nori” for better flavor.
Plastic wrap or parchment sheets
- This helps shape and hold the Onigirazu while you cut it.

Protein Filling Options

(Choose 1–2 options for variety)

Tuna mayo filling
- 1 can tuna in water, drained well
- 2–3 tablespoons Japanese mayo (like Kewpie; regular mayo also works)
- 1 teaspoon soy sauce
- 1/2 teaspoon sesame oil
Chicken option
- 1 cup cooked chicken, shredded or chopped
- 2 tablespoons mayo
- 1 teaspoon soy sauce
Egg option
- 2 large eggs
- 1 teaspoon soy sauce
- 1 teaspoon neutral oil for the pan

Veggies & Extras

1 small cucumber, sliced into thin sticks
1 small carrot, peeled and cut into matchsticks
4 leaves lettuce or a handful of baby spinach
1 avocado, sliced
2 tablespoons furikake rice seasoning
- You can swap with toasted sesame seeds and crumbled nori if you do not have furikake.
Optional: quick pickles, kimchi, or cooked mushrooms for extra flavor

Sauces & Seasonings

Soy sauce, to taste
Sriracha or Japanese chili oil, to taste
Extra sesame oil, to taste

Equipment

Rice cooker or medium saucepan with lid
Small bowl for mixing fillings
Cutting board
Sharp knife (preferably a long chef’s knife)
Plastic wrap or parchment
Small skillet if you cook eggs or warm fillings

Tips & Tricks

Rinse the rice until the water runs almost clear so the grains cook fluffy and not gummy.
Spread the rice in a thin, even layer so the Onigirazu closes easily and does not burst.
Keep your hands slightly wet or oiled when handling rice to prevent sticking.
Place the nori shiny side down so the pretty side faces out on the finished square.
Cool hot fillings slightly before assembly so the nori stays firm and the rice does not get mushy.
Slice with a very sharp, slightly damp knife and wipe the blade between cuts for clean halves.
Pack fillings in a compact stack so they stay centered and do not slide out when you bite.
Wrap each Onigirazu tightly in plastic wrap if you plan to pack it for lunch or travel.

How to Make Onigirazu Recipe

Cook and Season the Rice

Rinse the rice under cold water, swishing with your hand, and drain several times until the water looks mostly clear.
Add the rice and water to a rice cooker or saucepan, then cook according to your rice cooker instructions or bring to a boil, cover, lower the heat, and simmer for about 15 minutes.
Turn off the heat and let the rice sit covered for 10 minutes so the steam finishes the cooking.
In a small bowl, mix rice vinegar, sugar, and salt until they dissolve, then gently fold this mixture into the hot rice with a rice paddle while you fluff it.

Prepare Fillings

For tuna mayo, mix drained tuna, mayo, soy sauce, and sesame oil in a bowl until creamy and spreadable.
For chicken, stir together chopped chicken, mayo, and soy sauce until the pieces coat evenly.
For eggs, beat eggs with soy sauce, heat oil in a small skillet, and cook into a thin omelet, then slice it into strips.
Slice cucumber, carrot, and avocado, wash and dry lettuce or spinach, and gather any extra fillings like pickles or furikake.

Set Up the Nori and Rice

Place a sheet of plastic wrap on your cutting board, then set one nori sheet on top in a diamond shape so a corner points toward you.
Wet your hands lightly, scoop about 1/2 cup of warm rice, and shape it into a rough square in the center of the nori.
Sprinkle a little furikake over the rice if you like extra flavor.

Add Fillings

Layer your protein filling on top of the rice square, keeping it slightly smaller than the rice base.
Add veggies like cucumber, carrot, and lettuce, then tuck in avocado slices and any extras.
Top the filling with another 1/3 to 1/2 cup of rice and gently press it into a square that matches the base layer.

Fold and Wrap

Starting with the corner closest to you, fold the nori over the rice and filling, then fold the opposite corner over it.
Fold the remaining two corners over the center so you form a neat square package.
Use the plastic wrap to pull everything tight and wrap the Onigirazu firmly, then let it sit for 5–10 minutes so the nori softens and seals.

Slice and Serve

When you feel ready to serve, unwrap the square and place it seam side down on the cutting board.
Use a sharp, slightly damp knife to slice it in half diagonally or straight down the middle.
Plate the halves cut side up so the colorful layers show, then drizzle with a little soy sauce or spicy mayo if you like.

What to Serve with it?

This Onigirazu Recipe pairs nicely with a simple miso soup or a light vegetable soup for a cozy meal. Add a small side salad with sesame dressing or a cucumber salad for crunch and freshness. You can also serve fruit like orange slices, grapes, or apple wedges for a sweet contrast. Green tea or iced tea works nicely as a drink and keeps the whole meal light and refreshing.

Storage Options

Store leftover Onigirazu in the fridge wrapped tightly in plastic wrap or in an airtight container for up to 24 hours.
Keep avocado-free versions in the fridge for up to 2 days, since avocado browns faster.
Freeze only plain rice and protein fillings separately if you want longer storage, since nori turns chewy in the freezer.
Reheat rice-based fillings gently in the microwave, then assemble fresh Onigirazu, or eat chilled straight from the fridge for a quick grab-and-go meal.