3: Pour 2 tablespoons olive oil into a large saucepan over medium heat; when it’s hot, add the thinly sliced shallots, salt, and pepper, and cook for 1 minute without browning. Add the mushrooms and sauté for about 5 minutes (don’t add salt right away, or the mushrooms will release a lot of water).
Put a small amount of filling near the edge of a pancake...
7: ...start rolling it up...
8: ...then fold in the sides...
9: ...to finish with a neat roll.
10: Prepare all the pancakes like this and lay them in an oven-proof dish.
11:
Bake the pancakes "au gratin"
Preheat the oven to 430°F (220°C). Pour 2 tablespoons cream evenly over the pancakes and scatter 2 tablespoons grated cheese on top. Bake for about 10 minutes...
12: ...until nicely browned.
Remarks
I used oyster mushrooms here, but you can use any sort you have available.