For a richer flavor, use a combination of Gruyere and Cheddar cheese. Freshly grated nutmeg adds a warm, aromatic note to the sauce. If you want to make it ahead, assemble the casserole (without the fried onions) and refrigerate it for up to 24 hours. Add the onions just before baking. Try using different types of mushrooms for a more complex flavor profile.
Gavin Leannon
Jun 11, 2024This was so much better than the canned soup version! My family devoured it.
Terrance Denesik
Jan 8, 2024Making this ahead of time was a lifesaver for Thanksgiving.
Christ Turner
Nov 23, 2023I added a pinch of nutmeg and it was amazing!
Efren Funk
Jan 31, 2023I used baby bella mushrooms and it was delicious! Will definitely make again.