Spicy Tuna Sushi Bake (Ready in 35 Minutes)

A spicy tuna sushi bake is the answer when you want a warm, scoopable casserole that tastes like your favorite spicy tuna roll. No raw fish, no rolling mat, just layers of seasoned rice and a creamy, spicy tuna topping that gets bubbly and golden in the oven.

Scoop it onto crisp nori sheets right from the pan, and you have a weeknight dinner that feels like a treat. It comes together fast with pantry staples you probably already have.

What Makes This Sushi Bake So Good

The top gets crackly and bronzed under the broiler while the tuna mix stays creamy underneath. It is salty, a little sweet from the rice, and carries a gentle heat you can dial up or down.

That combination of textures is what keeps me coming back to this recipe. The sticky rice clings to the tuna, the crisp bits give a little crunch, and the fresh nori wrap adds that cool, briny chew. And because it uses high-quality canned tuna, the whole thing is on the table in just over half an hour.

Ingredients

• 2 cups sushi rice: short-grain rice labeled “sushi” or “calrose” gives the right stickiness.
• 2 ½ cups water: for cooking the rice; adjust if your rice cooker manual says otherwise.
• 2 tbsp unseasoned rice vinegar: adds the familiar sushi-rice tang.
• 1 tsp granulated sugar: balances the vinegar; just a whisper.
• ½ tsp fine sea salt: use half that if your soy sauce is very salty.
• 2 (5-ounce) cans solid white albacore tuna in water: drained very well; chunk light works in a pinch.
• ¼ cup kewpie mayonnaise: the Japanese kind tastes richer, but regular mayo works.
• 2 tbsp sriracha: more if you like it really spicy, less if you are feeding kids.
• 1 tsp soy sauce: a little umami depth for the tuna mixture.
• 1 tsp toasted sesame oil: for drizzling over the rice layer.
• 1 tbsp furikake: a seaweed and sesame rice seasoning; find it in the international aisle.
• 2 green onions: sliced thin, for serving.
• Toasted nori sheets: the seaweed squares you wrap around the scoops.

Variations

• Use canned salmon: Sub in two 5-ounce cans of drained salmon. The flavor is a little richer and the color is deeper pink.
• Go lighter on the mayo: Swap half the mayo for plain Greek yogurt. The topping will be tangier and slightly less creamy, but still works.
• Kick up the heat: Add a teaspoon of chili garlic sauce or a few drops of toasted sesame chili oil to the tuna mix.
• Add a fresh finish: Scatter diced avocado or thin cucumber slices over the top after broiling. The cool crunch against the hot bake is a nice contrast.

If you enjoy this, try a California roll bake next. Same method, but with imitation crab, cucumber, and avocado folded into the rice layer.

How to Make Spicy Tuna Sushi Bake

Step 1: Cook the Sushi Rice

Rinse 2 cups sushi rice under cool water until the water runs clear. This removes surface starch so the rice bakes up sticky, not gummy. Combine the drained rice and 2 ½ cups water in a medium saucepan or rice cooker. If using a saucepan, bring it to a boil over high heat, then cover tightly, reduce the heat to low, and simmer for 15 minutes. After 15 minutes, turn off the heat and let the rice sit covered for 10 minutes. Do not lift the lid.

The rice should look plump and glossy, with every grain separate but tacky to the touch. While it rests, whisk the rice vinegar, sugar, and salt in a small bowl until the sugar dissolves. When the rest is done, gently fold the vinegar mixture into the rice with a slicing motion. This keeps the grains from smashing.

Step 2: Mix the Spicy Tuna

Drain the two cans of tuna thoroughly. Press out as much liquid as you can so the bake does not turn watery. In a bowl, break the tuna into small flakes with a fork, then stir in the ¼ cup mayo, 2 tablespoons sriracha, and 1 teaspoon soy sauce until everything is evenly coated.

The mixture should be creamy enough to spread but not soupy. If it looks dry, add a tiny bit more mayo. You want a soft, spoonable paste that will melt slightly in the oven without releasing liquid.

Step 3: Assemble the Casserole

Preheat your oven to 400°F (200°C). Lightly grease an 8×8-inch baking dish. Spread the seasoned rice evenly across the bottom and drizzle the 1 teaspoon of toasted sesame oil all over the surface. Spoon the spicy tuna mixture on top and spread it to the edges with a spatula, covering the rice completely. Drizzle a little more sriracha and mayo on top in a thin zigzag if you like a spicy, golden crust, then sprinkle the 1 tablespoon of furikake over everything.

The layers should be packed but not pressed hard. The rice layer will steam under the tuna and absorb that creamy, savory flavor while the top gets a chance to crisp.

Step 4: Bake Until Bubbly

Place the dish in the center of the oven and bake for 20 minutes. After about 15 minutes you will see the edges bubbling and the furikake starting to toast.

The kitchen will smell nutty and a little spicy. The surface should look set but still slightly soft when you press it with a spoon. If you used a larger dish and the layer is thinner, start checking at 15 minutes.

Step 5: Broil and Scoop

Switch your oven to broil and move the dish to the top rack. Broil for 2 to 3 minutes, watching closely, until the top is deep golden brown and blistering in a few spots. The edges will darken quickly, so don’t walk away.

Remove the dish and scatter the sliced green onions over the top with an extra pinch of furikake. Serve the bake right in the dish, with stacks of toasted nori on the side. To eat, use a large spoon to scoop a portion onto a sheet of nori, wrap it up, and bite.

A Few Tips Before You Start

• Use day-old rice if you have it: Cold, refrigerated sushi rice spreads more easily and does not clump as much when you assemble the layers. Just break it up with wet hands before pressing it into the dish.
• Do not overmix the tuna: Stir just until the mayo and sriracha are combined. Overworking canned tuna turns it into a dull paste instead of a light, flaky topping.
• Keep a close eye on the broiler: The top goes from golden to burnt in seconds. Pull the dish the moment you see even caramelization across the surface.

Bake time by dish size:

Storing Leftover Sushi Bake

• Refrigerate: Cover the cooled dish tightly and store in the fridge for up to 3 days. The rice will firm up, but the flavor stays.
• Reheating: The best way is a 350°F oven until warmed through, about 10 to 12 minutes. A quick zap in the microwave works too, though you will lose the crispy top. If you want that crunch back, run it under the broiler for a minute after microwaving.

What to Serve with Spicy Tuna Sushi Bake

A bowl of steamed edamame with sea salt is quick and gives a clean, vegetal contrast to the richness of the bake. Thinly sliced cucumber tossed with a splash of rice vinegar and a pinch of sugar makes a bright, crunchy side that wakes everything up. If you want something warm, a cup of instant miso soup rounds out the meal with almost no extra effort.

Frequently Asked Questions

Can I use fresh tuna?

You can, but you will need to cook it first. Fresh tuna will not turn creamy the way canned tuna does. Canned tuna is actually the better choice here for texture and speed.

Is this sushi bake gluten free?

Not as written, because regular soy sauce contains wheat. Swap in tamari or coconut aminos, and double-check that your furikake and mayo are labeled gluten free. The rest of the ingredients are naturally safe.

Can I assemble it ahead of time?

Yes. You can layer everything in the dish, cover it, and refrigerate for up to 8 hours before baking. Add 5 extra minutes to the bake time to account for the cold dish.

Can I sub the mayo completely?

You can use full-fat Greek yogurt, but the texture will be less rich and the top will not brown as deeply. It is a lighter version that still works, just know it will not have the same silky mouthfeel.

Spicy Tuna Sushi Bake Recipe

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Prep Time 15 minutes mins

Cook Time 20 minutes mins

Total Time 35 minutes mins

Servings: 4 servings

Calories: 435

Ingredients Method Notes

Ingredients

  

• 2 cups sushi rice
• 2 ½ cups water
• 2 tbsp unseasoned rice vinegar
• 1 tsp granulated sugar
• ½ tsp fine sea salt
• 2 (5-ounce) cans solid white albacore tuna in water, drained
• ¼ cup kewpie mayonnaise
• 2 tbsp sriracha
• 1 tsp soy sauce
• 1 tsp toasted sesame oil
• 1 tbsp furikake, plus more for serving
• 2 green onions, thinly sliced
• Toasted nori sheets, for serving

Method

 

1. Rinse the sushi rice until water runs clear, then cook with 2 ½ cups water until tender. Fold in the rice vinegar, sugar, and salt while warm.
2. Combine the drained tuna, mayonnaise, sriracha, and soy sauce. Mix gently until a creamy, flaky mixture forms.
3. Spread the seasoned rice into a greased 8×8-inch dish. Drizzle with sesame oil, then top with the tuna mixture. Add a drizzle of extra spicy mayo and sprinkle with 1 tablespoon furikake.
4. Bake at 400°F for 20 minutes until the edges bubble and the top is set.
5. Broil on the top rack for 2 to 3 minutes until golden and crisp. Remove from the oven, garnish with green onions and more furikake, and serve immediately with nori sheets.

Notes

Let the bake sit for 3 to 4 minutes before scooping so the layers hold together better. The broiling time is short, so stay right by the oven and pull the dish the moment you see even browning.