I think you’ll be glad you did try it!
We have used just regular mushrooms and last time a mix of the baby portobellos and regular - 50% each. My friend tried it with some of the more exotic mushrooms, crimini, oyster, etc. and said it was great that way also.
Enjoy!
DELUXE GRILLED CHEESE
Thickly spread one side of two bread slices with garlic/herb butter mixture. Press buttered sides in grated Parmesan. Grill bread to a nice crispy brown.
Now add cheese slices to one slice (Cheddar, Swiss, American and Jack). Press the two bread slices together into a sandwich.
Grill/melt cheese.
I'm going to try it, too. And I'm going to make at least a double batch. I plan on freezing some in ziploc bags.
Thanks for posting!