Spicy Tuna Crispy Rice

Featured in: Flavorful Sides

These crispy rice squares feature a creamy, spicy tuna topping balanced with fresh avocado slices. The sushi rice is cooked, seasoned with rice vinegar, and chilled before frying to achieve a golden, crunchy base. The spicy tuna mix blends diced sashimi-grade tuna with mayonnaise, Sriracha, soy sauce, and sesame oils for a burst of umami flavor. Finished with green onions and sesame seeds, this dish offers a delightful bite-sized treat full of texture and zest.

Updated on Tue, 23 Dec 2025 09:20:00 GMT
Golden, fried Spicy Tuna Crispy Rice appetizers are topped with creamy spicy tuna, ready to eat. Pin
Golden, fried Spicy Tuna Crispy Rice appetizers are topped with creamy spicy tuna, ready to eat. | garlicgroove.com

I discovered these crispy rice bites at a dinner party where a friend served them as appetizers, and I watched them disappear faster than anything else on the table. The contrast between the golden, shattered rice and the creamy spicy tuna on top felt like sushi reinvented for your fingers. That night, I went home determined to figure out how to make them, and after a few attempts—including one where I didn't press the rice firmly enough and it crumbled everywhere—I finally nailed it. Now they're my go-to when I want to impress without spending hours in the kitchen.

I made these for a New Year's Eve party where my coworker brought them up in conversation, and I volunteered to test my recipe that afternoon. Standing in my kitchen at 4 PM with oil popping in the pan and Sriracha on my fingers, I felt that quiet satisfaction of trying something new. When the first batch came out of the oil, golden and crackling, I knew I had something special—something that would let people eat crispy, sushi-inspired food without the fuss of rolling.

Ingredients

  • Sushi rice: Use short-grain sushi rice, not long-grain, because the starch helps it bind and crisp up properly when fried.
  • Rice vinegar, sugar, and salt: These season the rice with the classic sushi flavor—don't skip microwaving the mixture to dissolve the sugar evenly.
  • Sushi-grade tuna: This is non-negotiable for safety and flavor; ask your fishmonger for sashimi-grade and use it the same day you buy it.
  • Kewpie mayonnaise: It's richer and creamier than regular mayo, which makes the spicy tuna mixture feel luxurious.
  • Sriracha: Adjust to your heat tolerance, or substitute with gochujang for a deeper spice.
  • Sesame oil and toasted sesame seeds: These add nutty depth that makes the tuna feel more sophisticated.
  • Avocado: Adds creaminess and a cooling contrast to the spicy tuna.

Instructions

Rinse and cook the rice:
Rinse the sushi rice under cold water, stirring gently with your fingers until the water runs clear—this removes excess starch so the rice stays distinct and crispy. Cook it with the measured water following the standard method, and let it steam under the lid for 10 minutes after removing from heat so the grains finish cooking gently.
Season the rice:
Mix the rice vinegar, sugar, and salt together and microwave for 20 seconds just until the sugar dissolves, then fold gently into the warm rice using a wooden spoon or spatula so you don't crush the grains. Spread it on a plate or shallow bowl to cool to room temperature.
Set the rice slab:
Line your 8x8-inch pan with plastic wrap and press the cooled rice evenly into it, about 3/4 inch thick, using the bottom of a measuring cup or your palms. Cover with another layer of plastic wrap and refrigerate for at least an hour—overnight is even better because it firms up and fries more crisply.
Prepare the spicy tuna:
Combine the diced sashimi-grade tuna with mayonnaise, Sriracha, soy sauce, sesame oil, green onion, and sesame seeds in a bowl, mixing gently so you don't break down the tuna. Taste it and adjust the Sriracha or soy sauce to your preference, then refrigerate until the rice is ready.
Cut the rice:
Lift the rice slab from the pan using the plastic wrap and peel it back, then use a sharp, lightly oiled knife to cut the slab into 16 equal rectangles or squares. Wipe your knife between cuts so the rice doesn't stick.
Fry the rice until golden:
Heat 1/2 inch of vegetable oil in a nonstick skillet over medium-high heat—it should shimer when it's ready. Fry the rice pieces in batches without crowding, about 2 to 3 minutes per side, until they're golden brown and the edges are dark and crispy, then drain them on paper towels and let them cool slightly so they stay crisp.
Assemble and serve:
Top each cooled rice square with a generous spoonful of the spicy tuna mixture, then add a piece of avocado and sprinkle with black sesame seeds and thinly sliced green onion if you like. Serve immediately while the rice is still crispy.
Perfectly formed Spicy Tuna Crispy Rice, a Japanese-American fusion, featuring a creamy tuna topping. Pin
Perfectly formed Spicy Tuna Crispy Rice, a Japanese-American fusion, featuring a creamy tuna topping. | garlicgroove.com

My favorite moment with this recipe came when my picky-eater nephew tried one and asked for another before his parents could stop him. Watching someone discover that they love something they thought they wouldn't is the kind of small victory that reminds me why I love cooking for people.

The Secret to Crispy Rice

The magic happens when you fry the rice at the right temperature and don't crowd the pan. Oil that's too cool makes the rice soggy and greasy, while oil that's screaming hot will char the outside before the inside is warm. Medium-high heat gives you that sweet spot where the rice crisps up in a few minutes without burning. I learned this by making batch after batch and paying attention to the sound—when the oil stops violently sizzling and settles into a gentle crackle, you know the rice is done.

Playing with Flavors

The spicy tuna mixture is forgiving and fun to customize. Some people swap in finely chopped sushi-grade salmon for a milder taste, while others fold in cooked crab or even diced cucumber for extra texture. I've also experimented with sriracha mayo (mixing Sriracha into the mayo before combining with tuna) to deepen the spicy flavor without making it hot. The avocado is your safety net—it cools down the heat and adds creaminess that balances everything.

Timing and Serving

These are best served within 30 minutes of frying because the rice stays crispy and the avocado hasn't started to darken. If you're making them for a party, fry the rice squares in advance and store them in an airtight container, then top them just before serving. Set out little bowls of extra soy sauce, wasabi, and pickled ginger on the side because people love customizing each bite.

  • Prep the spicy tuna mixture hours ahead and keep it refrigerated so you only have to fry and assemble at the last minute.
  • If your first batch cooks too fast or too slow, adjust the heat slightly before the second batch—every stove is different.
  • Don't skip draining the fried rice on paper towels, or residual oil will soften the crispy exterior.
Crispy, golden rice squares topped with spicy tuna and avocado, creating delicious Spicy Tuna Crispy Rice. Pin
Crispy, golden rice squares topped with spicy tuna and avocado, creating delicious Spicy Tuna Crispy Rice. | garlicgroove.com

There's something satisfying about serving food that's beautiful enough to photograph but casual enough to eat with your hands. These crispy rice bites do that perfectly.

Spicy Tuna Crispy Rice

Crispy rice squares with spicy tuna and avocado, perfect for appetizers or snacks.

Prep duration
30 min
Cook duration
20 min
Complete duration
50 min


Complexity Medium

Heritage Japanese-American Fusion

Output 16 Portions

Dietary requirements No dairy

Components

Crispy Rice

01 1 cup sushi rice
02 1 1/4 cups water
03 2 tablespoons rice vinegar
04 1 tablespoon sugar
05 1/2 teaspoon salt
06 Vegetable oil for frying

Spicy Tuna

01 6 oz sushi-grade tuna, finely diced
02 2 tablespoons mayonnaise (preferably Kewpie)
03 1 tablespoon Sriracha
04 1 teaspoon soy sauce
05 1 teaspoon sesame oil
06 1 teaspoon finely chopped green onion
07 1/2 teaspoon toasted sesame seeds

Topping and Garnish

01 1/2 avocado, sliced or diced
02 1 teaspoon black sesame seeds (optional)
03 Thinly sliced green onion (optional)

Directions

Step 01

Cook Sushi Rice: Rinse sushi rice under cold water until clear. Combine rice and water in a saucepan, bring to a boil, then reduce heat to low. Cover and cook for 15 minutes. Remove from heat and let rest, covered, for 10 minutes.

Step 02

Season Rice: Mix rice vinegar, sugar, and salt in a small bowl. Microwave for 20 seconds to dissolve. Gently fold mixture into cooked rice and allow to cool to room temperature.

Step 03

Prepare Rice Base: Line an 8x8-inch pan with plastic wrap. Press cooled rice into pan evenly to about 3/4 inch thickness. Cover and refrigerate for at least 1 hour to firm up.

Step 04

Prepare Spicy Tuna: In a bowl, combine diced tuna, mayonnaise, Sriracha, soy sauce, sesame oil, green onion, and toasted sesame seeds. Mix gently and refrigerate until ready to use.

Step 05

Cut Rice Squares: Remove rice slab from pan and cut into 16 equal rectangles or squares.

Step 06

Fry Rice Squares: Heat 1/2 inch of vegetable oil in a nonstick skillet over medium-high heat. Fry rice pieces in batches, 2 to 3 minutes per side, until golden and crispy. Drain on paper towels and cool slightly.

Step 07

Assemble Bites: Top each fried rice square with a spoonful of spicy tuna. Add a slice or piece of avocado and sprinkle with optional black sesame seeds and sliced green onion. Serve immediately.

Necessary tools

  • Medium saucepan
  • Mixing bowls
  • 8x8-inch pan
  • Plastic wrap
  • Sharp knife
  • Nonstick skillet
  • Slotted spoon or spatula
  • Paper towels

Allergy details

Review each ingredient for potential allergens and speak with a healthcare provider if you're uncertain about anything.
  • Contains fish, egg (mayonnaise), and soy (soy sauce). Check labels for additional allergens.

Nutrition breakdown (per portion)

These values are provided as estimates only and shouldn't replace professional medical guidance.
  • Energy: 70
  • Fat: 3.5 g
  • Carbohydrates: 7 g
  • Protein: 3 g