You can learn how to make Olive Garden Stuffed Mushrooms they are easy to make. You need:
8 – 12 Fresh Mushrooms
1 6 ounce can of clams, drained and finely minced (save 1/4 cup of clam juice for stuffing)
1 green onion, chopped fine (about 1 tablespoon)
1 egg, beaten
1/2 teaspoon minced garlic
1/8 teaspoon garlic salt
1/2 cup Italian bread crumbs
1 teaspoon oregano leaves
1 tablespoon melted butter (cooled)
2 tablespoons finely grated Parmesan cheese
1 tablespoon finely grated Romano cheese
2 tablespoons finely grated mozzarella cheese (for stuffing)
1/4 cup finely grated mozzarella cheese (for garnish)
1/4 cup melted butter

You can find the whole recipe at:
http://www.copykat.com/2009/02/02/olive-garden-stuffed-mushrooms/