This Japanese-inspired casserole transforms sushi flavors into a warm, shareable dish. Seasoned rice forms the base, topped with flaked salmon mixed with spicy mayo and cream cheese. After baking until golden, it's finished with fresh nori, avocado, furikake, and crunchy sesame seeds. The result delivers all the satisfying flavors of sushi rolls in an easy-to-serve format that's perfect for feeding a crowd.
My sister-in-law brought this to a summer potluck last year, and I watched three generations of her family practically hover over the baking dish until it was gone. Someone accidentally took the last serving before the host got any, which caused more laughter than offense. I demanded the recipe on the spot, standing at her sink while she recited measurements from memory.
Last month, my daughter asked to help make it for her birthday dinner instead of requesting a restaurant meal. She stood on a stool carefully mixing the spicy mayo while I flaked the salmon, explaining that cooking together is better than any present.
Ingredients
- Sushi rice: The short grain creates the perfect sticky base that holds everything together, and washing it until water runs clear is nonnegotiable for that restaurant texture
- Rice vinegar mixture: This seasons the rice from within, and I learned to mix it while the rice is still hot so every grain absorbs that sweet tangy balance
- Salmon fillet: Skinless saves you from having to pick it out later, and flaking it while slightly warm makes the most tender chunks
- Soy sauce and lemon: This simple marinade creates depth in the salmon, and the lemon cuts through the richness beautifully
- Kewpie mayonnaise: Japanese mayo has a richer egg flavor that makes this dish sing, though regular mayo works in a pinch
- Cream cheese: The secret weapon that makes the salmon mixture impossibly creamy and helps bind everything together
- Furikake seasoning: This rice seasoning adds that essential umami punch and gorgeous speckled look that makes people ask whats in it
- Nori strips: Cut these into manageable pieces so you get that briny crunch in every bite without struggling through seaweed sheets
- Avocado: Adds cool creaminess against the warm spicy bake, and slicing it right before serving prevents any browning
Instructions
- Perfect the rice foundation:
- Rinse your sushi rice under cold water until it runs crystal clear, then cook it with the water and fold in the vinegar mixture while still hot. Press it into your baking dish in an even layer.
- Prepare the salmon:
- Bake the seasoned salmon at 200°C until just cooked through, then let it rest briefly before flaking into bite-sized chunks with a fork.
- Make the creamy mixture:
- Whisk together mayonnaise, Sriracha, and softened cream cheese until completely smooth, then gently fold in the flaked salmon until distributed.
- Layer it up:
- Spread the salmon mixture over the rice layer, sprinkle generously with furikake, and bake until everything is heated through and the edges are slightly golden.
- Finish and serve:
- Top with fresh nori strips, green onions, avocado slices, and sesame seeds, then serve warm while everyone hovers around the dish.
This became my emergency contribution for every gathering because it travels beautifully and serves a crowd with zero last-minute stress. My friends now request it specifically for game nights, texting days ahead to confirm Im making it.
Make It Your Own
Crab sticks work wonderfully as a salmon substitute, and canned salmon creates an even flakier texture. Ive made this with leftover rice too, though the texture is slightly less cohesive than freshly made sushi rice.
Serving Strategy
Set out small bowls of extra Sriracha, pickled ginger, and unagi sauce so guests can customize their portions. Some spoon it directly onto nori sheets like little hand rolls while others eat it straight from bowls.
Storage And Prep
The rice base can be made a day ahead and kept covered in the refrigerator, though bring it to room temperature before baking. Leftovers reheat surprisingly well, though the nori will lose its crunch.
- Portion into individual containers before reheating for the best texture
- Squeeze fresh lemon over leftovers to brighten the flavors
- Serve with cucumber slices for a refreshing crunch contrast
Theres something deeply satisfying about deconstructing a fancy roll into a warm, shareable comfort food that brings people together around one bubbling dish.
Frequently asked questions about this recipe
- → Can I make this ahead of time?
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Yes, prepare the rice and salmon mixture separately up to a day in advance. Store in the refrigerator, then assemble and bake when ready to serve. Add fresh toppings just before serving.
- → What can I substitute for Kewpie mayo?
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Regular mayonnaise works perfectly fine. For the authentic Kewpie flavor, add a pinch of MSG or a teaspoon of rice vinegar to regular mayo.
- → Is this dish spicy?
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The Sriracha adds mild heat. Adjust the amount to your preference or omit it entirely for a non-spicy version. The spice level is easily customizable.
- → Can I use brown rice instead?
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Brown rice works but will alter the texture and cooking time. Cook the brown rice thoroughly before using, as it requires more liquid and longer cooking than sushi rice.
- → How do I store leftovers?
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Store in an airtight container in the refrigerator for up to 2 days. Reheat in the oven at 350°F until warmed through. Note that the texture is best when fresh.
- → Can I freeze this dish?
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Freezing isn't recommended as the rice texture changes significantly and fresh toppings don't thaw well. It's best enjoyed fresh or refrigerated for 1-2 days.