Easy Spicy Tuna Sushi Bake (Using Canned Tuna!)

A delicious sushi casserole dish with rice, tuna, avocado, mayo, sriracha and green onions served with dry roasted seaweed. This quick and easy spicy tuna sushi bake is ready in 30 minutes. A great main or meal idea for all the tuna-lovers!

5 from 6 votes

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Prep Time 20

Cook Time 10

Total Time 30

Course Main Course

Cuisine Asian, Hawaiian, Japanese

Servings

Calories per serving 827 kcal

Ingredients

10 sheets nori cut in half to make 20 sheets
1 tablespoon furikake optional
1 teaspoon sesame seeds optional
4 medium avocado ripe
2-3 tablespoon Japanese mayo or regular mayo
2-3 tablespoon sriracha sauce
1 green onion finely chopped for garnishing
1 teaspoon vegetable oil or any neutral oil, for greasing the baking dish

Spicy Tuna Mixture

15.87 oz canned tuna in oil or canned tuna in water or canned salmon, 3 x 5.29 oz / 150 g cans
4-5 tablespoon Japanese mayo or regular mayo
1-2 tablespoon sriracha sauce
¼ teaspoon salt

For the Seasoned Rice

1.5 cups uncooked short-grain rice or 4 cups / 800 g cooked short-grain rice
1 tablespoon rice vinegar or apple cider vinegar or white vinegar
2 teaspoon white granulated sugar
½ teaspoon salt

Instructions

Evenly grease a 9 x 9-inch baking dish with vegetable oil or any neutral oil using a paper towel.
Cook short grain rice according to package instructions in your rice cooker or on the stove top (see Notes below for further instructions).
Preheat oven to 500 degrees F.
To season the rice: Transfer cooked hot rice to a large bowl. Season rice with salt, sugar and rice vinegar and mix with a rice paddle. Then evenly spread the rice and firmly pack the rice into the baking dish.
Sprinkle sesame seeds and furikake over the seasoned rice.
To make the spicy tuna mixture: Open canned tuna and strain out as much of the liquids as possible using a fine sieve and a fork. Transfer strained tuna to a medium-sized bowl and mix with Japanese mayo, sriracha sauce, and salt. Evenly spread the spicy tuna mixture over the rice.
Then peel and thinly slice avocados. Spread avocado slices over the tuna layer.
Generously drizzle Japanese mayo and sriracha sauce over the avocado.
Broil in oven for 10 minutes until the sauce is bubbling and golden brown. Remove from the oven and garnish with green onions.
Slice the sushi bake with a wet knife into 20 pieces and scoop a portion of the filling into a small sheet of nori. Enjoy!

Notes

To cook rice in a rice cooker

Rinse rice in the rice cooker pot with cold running water until it runs clear. Strain out the water.
Fill rice cooker pot with fresh cold water to the instructed water line in the pot.
Press "steam" or "white rice" button on your rice cooker.

To cook rice on the stove top using a pan

Rinse rice under cold running water until it runs clear and then strain. Transfer strained rice to a medium-sized pot or pan, ideally non-stick.
Then place your index finger above the rice and fill it with fresh cold water to the the first knuckle line of the finger.
Cover with a lid and bring to a boil on medium heat. Then reduce to low heat and keep covered. Cook for 12-14 minutes until most of the water has evaporated. If there's water in the base of the pot, continue to cook on low until there isn't.
Take the pot off the heat. Let this rest covered for another 10-12 minutes so the rice can properly cook through a steaming process. The finished rice will be sticky (not wet) and you should be able to fluff it with a rice paddle.

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