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Dinner / Delicious Onigirazu Rice Sandwich with Spicy Salmon, Cucumber, and Avocado
Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado

Delicious Onigirazu Rice Sandwich with Spicy Salmon, Cucumber, and Avocado

October 7, 2025 by Pamela

When looking for a satisfying and flavorful meal, there’s little that can rival an Onigirazu (Rice Sandwich) with Salmon, Cucumber, and Avocado. Imagine biting into a perfectly crafted sandwich that encapsulates the essence of sushi—the tender salmon dancing with zesty spicy mayo, the crunch of fresh cucumber, and the creamy avocado. It’s a flavor party of epic proportions, and trust me, you won’t want to miss out on this culinary celebration.

This Onigirazu is not just a meal; it’s a nostalgic journey for me. I can still remember the first time I stumbled upon this unique Japanese rice sandwich. I was at a local market, eyes wide and stomach grumbling, when I saw a vibrant green nori wrap surrounding a deliciously colorful filling. It was love at first sight and bite! It’s perfect for when you’re on the go, grabbing lunch between errands, or simply preparing for a cozy night in with friends. Allow me to introduce you to your new favorite sandwich that’s as delicious as it is fun to make!

Why You'll Love This Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado

  • This incredible Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado transforms simple everyday ingredients into restaurant-quality flavors that will blow your mind completely.
  • Foolproof recipe techniques guarantee perfect results every single time, making even novice cooks feel like professional chefs instantly.
  • Stunning visual appeal with gorgeous colors and mouthwatering aromas creates the ultimate Instagram-worthy dish for any special occasion.
  • Endlessly adaptable for different dietary needs while working beautifully for meal prep, date nights, or entertaining large groups effortlessly.

Ingredients for Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado

Here’s what you’ll need to make this delicious Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado:

1/2 cup mayonnaise – Preferably Kewpie for its rich flavor, this will be the creamy backbone of our spicy sauce.

1/2 cup sriracha – This fiery sauce will bring the heat and zest to your dish. Adjust based on your spice tolerance.

2 tsp. toasted sesame oil – This adds nutty depth; feel free to skip if you’re short on time or ingredients.

6 tsp. reduced-sodium soy sauce – Use it to season the salmon and enhance the umami flavor.

1 lb. skinless salmon – Opt for fresh skinless fillets; they’re the star of this show, providing richness and protein.

Kosher salt – A sprinkle will elevate and flavor the salmon perfectly.

2 2/3 cups warm cooked plain sushi rice – The sticky texture is what makes our Onigirazu hold together.

1 Tbsp. furikake – This Japanese seasoning adds hints of umami and crunch, making the rice a little more exciting.

3 Tbsp. rice wine vinegar – Balances flavors in the rice and absorbs into all the goodness.

1 1/4 tsp. granulated sugar – Helps to mellow the rice’s acidity for a delightful balance.

1 cup shredded purple cabbage – For crunch and a pop of color, but any cabbage will do!

8 (8″) sheets nori – These salty seaweed sheets wrap everything up nicely.

1 Persian cucumber – Thinly sliced, this contributes a refreshing crunch to each bite.

1 medium carrot – Peeled and grated for a touch of sweetness and color.

1 avocado – A staple in any good sandwich; creaminess galore!

How to Make Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado

Follow these simple steps to prepare this delicious Onigirazu (Rice Sandwich) with Salmon, Cucumber, and Avocado:

Step 1: Prepare the Spicy Mayo
In a medium bowl, combine the mayonnaise, sriracha, toasted sesame oil (if using), and 4 teaspoons of soy sauce. Mix until everything is well blended and creamy, making a note to taste it—your taste buds will thank you.

Step 2: Broil the Salmon
Preheat your broiler to high and place a rack closest to the broiler. On a large foil-lined baking sheet, place the salmon fillets, seasoning them generously with 1 teaspoon of salt. Spoon 1 tablespoon of the spicy mayo mixture onto each fillet and rub it in. Broil for 9 to 11 minutes, keeping an eye on them until they get that beautifully browned and blistered top.

Step 3: Prepare the Rice
While your salmon is broiling, grab a large bowl. Toss the warm cooked sushi rice with the furikake, 1 tablespoon of rice vinegar, 1 teaspoon sugar, and 2 teaspoons soy sauce until well combined. This mixture will become the means of binding all our tasty fillings together.

Step 4: Make the Cabbage Mixture
In a separate small bowl, combine the shredded purple cabbage, 1/4 teaspoon salt, and the remaining 2 tablespoons of rice vinegar and 1/4 teaspoon sugar. Toss until combined, giving it a tangy, crunchy flavor that’s completely irresistible.

Step 5: Flake the Salmon
Carefully transfer the broiled salmon to another medium bowl, adding in 2 tablespoons of your spicy mayo mixture. Use a fork to flake the salmon into bite-sized pieces, ensuring they are nicely coated in that delicious sauce.

Step 6: Assemble the Onigirazu
On a clean work surface, lay a sheet of nori with a point facing you. Spoon 1/3 cup of the rice mixture into the center, using wet fingers to pat it down into a small square. Top with 1/4 cup of the salmon mixture, followed by 4 slices of cucumber, 2 tablespoons of the cabbage mixture, 1 tablespoon of grated carrot, 2 slices of avocado, and a dollop of the spicy mayo. Fold the top corner down over the filling, followed by the bottom, left, and right corners to create a pouch. Wrap tightly with plastic wrap and let them sit for about 10 minutes.

Finally, unwrap your Onigirazu and slice it in half. Serve with the remaining spicy mayo on the side for a delightful dipping experience. Enjoy the wonderful burst of flavors!

You Must Know About Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado

  • This showstopping Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado delivers restaurant-quality results using simple ingredients you probably already have at home.
  • The perfect balance of textures and flavors creates an unforgettable dining experience that will have everyone asking for seconds.
  • Picture-perfect presentation with vibrant colors makes this dish absolutely Instagram-worthy and guaranteed to impress any dinner guest.
  • Incredibly versatile recipe that works beautifully for weeknight dinners, meal prep, special occasions, or even outdoor entertaining sessions.

Perfecting Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado Cooking Process

Start by broiling the salmon while prepping the rice and veggies. Mix the spicy mayo next, and layer everything beautifully into the nori sheets. This sequence maximizes efficiency and guarantees perfectly cooked ingredients every time.

Add Your Touch to Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado

Feel free to experiment with the filling! Try using different fish like tuna, swap mayo for Greek yogurt, or add avocado or pickled radishes for an extra crunch. Your imagination is the only limit.

Storing & Reheating Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado

Store any leftover Onigirazu in an airtight container in the fridge for up to two days. For best results, enjoy them cold, but if you’re craving warmth, briefly microwave on low and enjoy them fresh again.

Chef's Helpful Tips for Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado

  • This professional-quality Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado relies on precise timing and temperature control to achieve restaurant-standard results consistently.
  • Master the art of mise en place by prepping all ingredients beforehand, ensuring smooth execution and preventing any last-minute cooking disasters.
  • The secret lies in layering flavors throughout the cooking process rather than seasoning only at the end for maximum depth.
  • Pro tip: let the finished dish rest for optimal texture and flavor development before serving to hungry guests waiting eagerly.

When I made this Onigirazu for my friends’ picnic, their eyes lit up with delight as they took their first bites. The joy on their faces made all the effort worth it, and I still remember their requests for a repeat performance.

FAQs About Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado

What is Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado?

Onigirazu, often referred to as a rice sandwich, is a delightful Japanese-inspired dish that features a combination of sushi rice, fresh salmon, cucumber, avocado, and vibrant vegetables, all wrapped in a sheet of nori. Unlike traditional sushi rolls, Onigirazu is assembled like a sandwich, making it easy to eat and share. The flavors meld beautifully, thanks to the savory elements of the spicy mayo and the crunchiness of the vegetables. It’s a versatile dish perfect for picnics, meals on-the-go, or a fun dinner at home.

How do I store leftovers of Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado?

Storing leftovers of Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado is simple and helps maintain freshness. Place any leftover sandwiches in an airtight container and refrigerate. They should be consumed within two days for the best taste and texture. If you’re looking to enjoy them warm, you can microwave them briefly on a low setting. However, for the best experience, eating them cold is recommended, as the crispness of the vegetables will shine through.

Can I customize the Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado?

Absolutely! One of the joys of preparing Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado is its versatility. You can easily substitute ingredients based on your preferences or dietary needs. For instance, feel free to use different types of fish, such as tuna or shrimp, or switch out the mayonnaise for Greek yogurt. Adding pickled vegetables or extra veggie toppings like shredded carrots or radishes can enhance texture and flavor even further. Let your creativity shine in the kitchen!

What are some serving suggestions for Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado?

When it comes to serving Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado, the possibilities are endless! These sandwiches are fantastic alone, but pairing them with a simple sesame salad or miso soup adds a wonderful balance to your meal. You might also consider serving them alongside homemade dipping sauces, such as extra spicy mayo or soy sauce, to elevate the experience. Perfect for picnics or casual dining, these sandwiches are sure to impress your friends and family.

Conclusion for Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado

In conclusion, the Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado is not only delightful to eat but also offers a variety of customization options. This recipe allows you to enjoy the flavors of sushi in a playful sandwich format, perfect for any occasion. Whether you are enjoying a quiet dinner at home or preparing a meal for a picnic, this dish is sure to please everyone at the table. Dive into this vibrant rice sandwich and indulge in the taste adventure it brings!

Onigirazu (Rice Sandwich) with Salmon, Cucumber and Avocado

Delicious Onigirazu Rice Sandwich with Spicy Salmon, Cucumber, and Avocado

Enjoy this flavorful Onigirazu rice sandwich featuring spicy salmon, crisp cucumber, and creamy avocado for a delightful meal experience.
Print Recipe Pin Recipe
Prep Time 20 minutes mins
Cook Time 10 minutes mins
Resting Time 10 minutes mins
Total Time 40 minutes mins
Servings: 8 sandwiches
Course: Dinner
Cuisine: Japanese
Calories: 320
Ingredients Equipment Method Nutrition Notes

Ingredients
  

Spicy Mayo
  • 1/2 cup mayonnaise preferably Kewpie
  • 1/2 cup sriracha
  • 2 tsp toasted sesame oil optional
  • 6 tsp reduced-sodium soy sauce divided
Salmon and Rice Mixture
  • 1 lb skinless salmon cut into 2 (8-oz.) fillets
  • 1 tsp kosher salt
  • 2 2/3 cups warm cooked plain sushi rice
  • 1 Tbsp furikake
  • 3 Tbsp rice wine vinegar divided
  • 1 1/4 tsp granulated sugar divided
Vegetables and Nori
  • 1 cup shredded purple cabbage
  • 8 sheets nori (8 inches)
  • 1 Persian cucumber thinly sliced
  • 1 medium carrot peeled, grated
  • 1 avocado sliced

Equipment

  • baking sheet
  • mixing bowls
  • Fork
  • Plastic wrap

Method
 

Broiling the Salmon
  1. Place a rack closest to broiler. Heat broiler to high. In a medium bowl, combine mayonnaise, sriracha, oil (if using), and 4 teaspoons soy sauce.
  2. Place salmon on a large foil-lined baking sheet; season all over with 1 teaspoon salt. Spoon 1 tablespoon spicy mayo on each fillet and rub all over. Broil salmon, watching closely, until tops start to brown and blister, 9 to 11 minutes.
Preparing the Rice and Vegetables
  1. Meanwhile, in a large bowl, toss rice, furikake, 1 tablespoon vinegar, 1 teaspoon sugar, and remaining 2 teaspoons soy sauce until combined.
  2. In a small bowl, toss cabbage, 1/4 teaspoon salt, and remaining 2 tablespoons vinegar and 1/4 teaspoon sugar until combined.
Assembling the Onigirazu
  1. Transfer salmon to another medium bowl and add 2 tablespoons spicy mayo. Using a fork, break salmon into small pieces and toss until coated.
  2. On a work surface, arrange a sheet of nori with a point facing you. Spoon 1/3 cup rice mixture into the center. Using wet fingers, pat rice into a square.
  3. Top with 1/4 cup salmon mixture, spreading over rice. Layer with 4 slices cucumber, 2 tablespoons cabbage mixture, 1 tablespoon grated carrot, 2 slices avocado, and 2 tablespoons spicy mayo.
  4. Fold top corner of sheet down over the center. Repeat with bottom, left, and right corners to make a square pouch, enclosing fillings. Tightly wrap with plastic wrap. Repeat with remaining sheets and filling. Let sit 10 minutes.
  5. Unwrap sushi sandwich and slice in half. Serve with remaining spicy mayo alongside.

Nutrition

Serving: 1sandwichCalories: 320kcalCarbohydrates: 34gProtein: 15gFat: 15gSaturated Fat: 2gPolyunsaturated Fat: 5gMonounsaturated Fat: 8gCholesterol: 35mgSodium: 600mgPotassium: 400mgFiber: 3gSugar: 2gVitamin A: 30IUVitamin C: 25mgCalcium: 4mgIron: 6mg

Notes

This recipe provides a perfect blend of flavors and textures, making it a great choice for picnics, lunches, or dinner at home.

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