This is my own recipe that I have developed over years. Today for the first time I measured everything. If you want a mushroom for a meal use large mushrooms if you are doing for a appetizer use small. This recipe is based on using small mushrooms. If you are using large you may have to cook it a little longer.
Notes from the Test Kitchen:
If you love seafood, then you'll love these! The stuffing is delicious and I really liked the addition of different color bell peppers. I used small mushrooms because I like to serve one bite appetizers, but try using larger mushrooms for a great meal. They're delish!
crab meat (you don't have to use lump, but do not use just claw meat)
fresh mushrooms, either button mushrooms or small portobello
diced orange bell pepper
diced green bell pepper
diced sweet onion
mozzarella cheese, shredded
sharp provolone, shredded and set aside
How to Make Heavenly Mushrooms Stuffed with Crab Meat