Olive Garden Stuffed Mushrooms

2 large pkgs button mushrooms, washed
1 can chopped clams, drain and put through food processor
1/4 - 1/2 cup finely chopped onion
1/2 - 1 cup REAL butter
1/2 - 3/4 cup Fresh Parmesan cheese, grated
1/2 - 3/4 cup Fresh Romano cheese, grated
1 - 1 1/2 cup Shredded Mozzarella cheese
1/2 carrot, finely chopped (food processor is best)
1-2 cups Seasoned Bread Crumbs
1-2 cloves garlic, mince
1 egg
Remove stems from mushrooms and place in food processor with carrot, onion,
and clams. Once finely chopped, place in saucepan with garlic and about 1/4 -
1/2 cup butter. Sauté until tender. Mix cheeses together, leave about 3/4 cup
aside. Mix stem mixture, bread crumbs, egg and cheese together. Mixture should
pack well and not be wet or crumbly - add to mixture as you see fit. Stuff
mushrooms and place in a 13x9 baking dish. Sprinkle remaining cheese on top,
cut butter into pats over top of cheese. Bake at 350 until mushrooms are fully
cooked. Broil about 5 minutes to brown the tops. Remove from oven and serve
immediately.