Step 1

Remove mushroom stems (discard or save for another use); set caps aside.

Step 2

In a large bowl, combine the clams, bread crumbs, Parmesan cheese, cream cheese, onions, garlic paste, parsley, salt and pepper.

Step 3

Stir in 3/4 cup butter.

Step 4

Fill each mushroom cap with about 1 tablespoon clam mixture.

Step 5

Place on an ungreased baking sheet.

Step 6

Sprinkle with mozzarella cheese; drizzle with remaining butter.

Step 7

Bake, uncovered, at 350° for 20-25 minutes or until lightly browned.

Step 8

Serve warm.