
This baked salmon with mushrooms is rich, savory, and easy enough for a weeknight dinner. Tender salmon fillets are layered over sauteed mushrooms and topped with a creamy mayonnaise-cheese sauce, then baked until golden and bubbling.
Preheat the oven to 480°F (250°C). Thinly slice the onion and shiitake mushrooms, and separate the shimeji into small clusters.

Sprinkle the salmon fillets with 1/2 teaspoon salt and let them rest for 10 to 15 minutes. Pat dry with paper towels before cooking.

Heat 2 teaspoons oil in a skillet over medium heat. Add the onion, shiitake, and shimeji mushrooms, and saute until the onion softens and turns translucent.

Add the sake and soy sauce to the skillet. Cover and steam for 2 to 3 minutes, then uncover and cook until any excess liquid has evaporated.

Spread the mushroom mixture in an even layer in a heatproof baking dish.

In a small bowl, mix the mayonnaise, milk, and pizza cheese until combined. Stir in chopped parsley if using.

Heat 1 tablespoon oil in the skillet and sear the salmon over medium-high heat for 1 to 2 minutes per side, just until lightly browned. The fish does not need to be cooked through.

Place the seared salmon on top of the mushrooms in the baking dish. Spoon the mayonnaise sauce evenly over the fillets.
Bake for 15 to 20 minutes, or until the salmon is cooked through and the top is lightly golden. Finish with a squeeze of lemon or kabosu before serving.
If shimeji mushrooms are unavailable, use oyster mushrooms or extra shiitake. Avoid overbaking the salmon to keep it moist. Leftovers can be refrigerated in an airtight container for up to 2 days and reheated gently.




