01 - Heat olive oil and butter in a large skillet over medium heat. Add the shallot and cook for 1–2 minutes until translucent.
02 - Add the sliced mushrooms to the skillet. Sauté for 5–7 minutes until golden brown and all excess moisture has evaporated.
03 - Stir in the minced garlic and cook for 1 minute until fragrant, being careful not to let it brown.
04 - Pour in the dry white wine, scraping up any browned bits from the bottom of the pan. Let it reduce for 2–3 minutes.
05 - Reduce heat to low. Stir in the heavy cream, grated Parmesan, salt, pepper, and nutmeg if using. Simmer gently for 4–5 minutes until the sauce thickens slightly.
06 - While the sauce simmers, cook the gnocchi in a medium pot of salted boiling water according to package instructions until they float to the surface, about 2–3 minutes. Drain well using a slotted spoon.
07 - Add the drained gnocchi to the skillet with the creamy mushroom sauce. Gently toss to coat evenly, then stir in the chopped parsley.
08 - Serve immediately, garnished with extra Parmesan and a sprinkle of fresh parsley.