Spicy Tuna Crispy Rice Bites

Featured in: Everyday Bowls & Grain Bites

This dish combines crunchy, golden crispy rice squares with a creamy, spicy blend of finely diced sashimi-grade tuna, mayonnaise, and Sriracha. Lightly fried to perfection, the rice provides a crisp base that contrasts with the spicy, silky topping. Garnished with avocado slices and sesame seeds, it offers a balanced flavor and texture profile. Ideal as a party snack or appetizer, these bites bring a fusion of Japanese and American influences, ready in under an hour.

Updated on Tue, 23 Dec 2025 13:35:00 GMT
Golden-brown Spicy Tuna Crispy Rice appetizers are topped with creamy tuna and avocado, perfect as a snack. Pin It
Golden-brown Spicy Tuna Crispy Rice appetizers are topped with creamy tuna and avocado, perfect as a snack. | hazelflint.com

I discovered these spicy tuna crispy rice bites at a dinner party where someone casually described them as "sushi you can hold in your hand," and I became obsessed with recreating that perfect contrast of warm, shattered rice against cool, creamy tuna. The first time I made them, my kitchen filled with the smell of frying rice and sesame oil, and I couldn't stop sneaking pieces straight from the cooling rack. There's something about the satisfying crunch under your teeth followed by that spicy kick that makes them disappear faster than you'd expect. Now they're my go-to when I need something that looks impressive but doesn't require hours of fussy preparation. These little bites have a way of making any gathering feel a bit more special.

I'll never forget the moment a friend who'd been skeptical about my cooking abilities tried one of these and immediately asked for the recipe, then admitted she'd assumed I'd bought them from a fancy sushi place. That validation—even though it was silly—made me realize I'd stumbled onto something genuinely special, something that bridges the gap between home cooking and restaurant elegance.

Ingredients

  • Sushi rice: The foundation of everything; rinsing it removes excess starch and prevents gumminess, and it's what gives you that perfect tender base for frying.
  • Rice vinegar, sugar, salt: This trio seasons the rice with a delicate sweetness and tang that prevents it from tasting plain after frying.
  • Sushi-grade tuna: Non-negotiable for food safety and taste; if you can't find it, ask your fishmonger and they'll usually have it in the back.
  • Kewpie mayonnaise: It's richer and silkier than regular mayo, which makes a noticeable difference in the final texture and flavor.
  • Sriracha: The heat source here, but it adds more than just spice—it brings a subtle sweetness and depth.
  • Sesame oil, soy sauce: These two create an umami backbone that makes the tuna mixture taste sophisticated and complete.
  • Avocado: Adds a cooling creaminess that balances the heat and gives each bite a luxurious mouthfeel.

Instructions

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Prepare the sushi rice:
Rinse your rice under cold running water, stirring gently with your fingers until the water runs nearly clear—this step is what prevents sticky, gluey rice. Cook it with the measured water, let it steam off the heat for 10 minutes, then fold in the vinegar mixture while it's still warm so it absorbs the seasoning evenly.
Chill and compress the rice:
Once it's completely cool, press it firmly into your lined pan and refrigerate it for at least an hour so it becomes dense enough to hold together when fried. If you have time, overnight chilling creates an even crispier result.
Mix the spicy tuna:
Combine your diced tuna with mayo, Sriracha, soy sauce, and sesame oil, folding gently so you keep the tuna pieces intact rather than mashing them into a paste. The mixture should smell intensely aromatic—that's how you know the balance is right.
Cut and fry the rice squares:
Cut your chilled rice block into 16 pieces, then fry them in hot oil until they're golden and crispy on all sides, about 2 to 3 minutes per side. You'll hear the sizzle and smell the toasted rice aroma, and that's when you know they're approaching perfect.
Assemble and serve:
Top each warm rice square with a generous spoonful of spicy tuna, a piece of fresh avocado, and your chosen garnishes. Serve them immediately while the rice is still warm and crispy, because once they cool they lose some of that textural magic.
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Crispy edges and a vibrant topping make this Spicy Tuna Crispy Rice picture mouthwatering for sushi lovers. Pin It
Crispy edges and a vibrant topping make this Spicy Tuna Crispy Rice picture mouthwatering for sushi lovers. | hazelflint.com

There was one afternoon when I brought these to a potluck and someone's five-year-old ate three in a row before her mom could stop her, which made me laugh because I'd worried they might be too sophisticated for that crowd. It was a small moment, but it taught me that good food doesn't have to be complicated to matter—it just has to taste good and make people happy.

The Crispy Rice Magic

The real secret to these bites is understanding that sushi rice behaves completely differently once you fry it. When it hits hot oil, the outside shatters into a crispy shell while the inside stays tender and slightly yielding, creating a textural experience that's almost addictive. I learned this by accident the first time I made them—I thought I'd ruin the rice by frying it, but instead discovered something entirely new.

Building the Perfect Spicy Tuna Mixture

The spicy tuna component is where Kewpie mayonnaise becomes essential rather than optional; its slight sweetness and silky texture soften the heat of the Sriracha and prevent the mixture from tasting harsh or one-note. The green onion and sesame seeds aren't just garnish—they add freshness and nutty texture that make each bite more interesting. I always make this mixture while the rice is chilling so the flavors have time to meld together, and I taste it as I go because heat preferences vary so much from person to person.

Serving, Storage, and Variations

These are best served immediately while the rice is still warm and crispy, though you can make both components ahead and assemble them right before guests arrive. For a different angle, substitute the tuna with finely chopped sashimi-grade salmon, cooked lump crab, or even a mixture of cucumber and avocado for a vegetarian version. If you're meal-prepping, store the fried rice squares and spicy tuna separately in the refrigerator for up to two days, then warm the rice briefly in a 300-degree oven before topping.

  • Experiment with different sriracha brands—some are spicier and more vinegary than others, so adjust to your taste.
  • A tiny drizzle of unagi sauce on top adds restaurant-style elegance if you have it on hand.
  • Serve alongside extra soy sauce, wasabi, or pickled ginger for people who want to customize their heat level.
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Beautifully plated Spicy Tuna Crispy Rice features crispy rice squares with spicy tuna and fresh avocado slices. Pin It
Beautifully plated Spicy Tuna Crispy Rice features crispy rice squares with spicy tuna and fresh avocado slices. | hazelflint.com

These spicy tuna crispy rice bites have become my signature move, the thing people ask me to bring to gatherings because they know it'll be memorable. They're proof that you don't need special equipment or years of training to make food that feels impressive and tastes genuinely delicious.

Spicy Tuna Crispy Rice Bites

Crispy rice squares topped with spicy tuna and avocado make for a flavorful appetizer or snack.

Prep Time
30 minutes
Cook Time
20 minutes
Overall Time
50 minutes
Recipe by Vivian Gray


Skill Level Medium

Cuisine Japanese-American Fusion

Makes 16 Servings

Diet Preferences No Dairy

Ingredient List

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 ounces 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 & 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 rice: Rinse sushi rice under cold water until clear. Combine rice and water in a saucepan, bring to a boil, reduce heat to low, cover, and cook 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 20 seconds to dissolve. Fold gently into cooked rice and cool to room temperature.

Step 03

Chill rice: Line an 8x8-inch pan with plastic wrap. Press rice evenly about 3/4 inch thick into pan. Cover and refrigerate at least 1 hour to firm.

Step 04

Prepare spicy tuna mixture: Combine diced tuna, mayonnaise, Sriracha, soy sauce, sesame oil, green onion, and toasted sesame seeds in a bowl. Mix gently and refrigerate until ready to use.

Step 05

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

Step 06

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

Step 07

Assemble bites: Top each crispy rice square with a spoonful of spicy tuna, a slice or dice of avocado, then optionally sprinkle black sesame seeds and 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

Allergen Details

Review ingredients for allergens, and always talk to your doctor if you're unsure.
  • Contains fish, egg (mayonnaise), and soy (soy sauce). Check product labels for other potential allergens.

Nutrition Details (per portion)

Use this nutrition info as a reference only. It‘s not intended as healthcare advice.
  • Calories: 70
  • Fats: 3.5 g
  • Carbohydrates: 7 g
  • Proteins: 3 g