Cook sushi rice according to package instructions.
Mix with 2–3 tablespoons rice vinegar, 1 teaspoon sugar, and a pinch of salt while warm. Spread evenly in a greased baking dish.
Prepare the Salmon:
Bake or pan-sear salmon fillet until cooked through, about 10–12 minutes at 375°F (190°C).
Flake the salmon and mix with soy sauce and sesame oil. Spread over the rice layer.
Make the Spicy Mayo:
Combine mayonnaise and Sriracha in a small bowl. Adjust spiciness to taste.
Spread evenly over the salmon layer.
Bake the Sushi Casserole:
Preheat oven to 375°F (190°C).
Bake the assembled dish for 10–12 minutes until the topping is slightly golden and bubbly.
Serve:
Garnish with sesame seeds and chopped green onions.
Slice into squares and enjoy with soy sauce, pickled ginger, or wasabi on the side.
Serving and Storage Tips
