Sautee mushrooms in olive oil until soft and juices run out before placing in a baking pan.
In a bowl, mix together breadcrumbs, clams, cheese (if using), oregano, basil, salt and pepper.
Stuff mixture into each mushroom and top with cheese if desired.
Bake at 350 for 10 – 15 min. or until cheese is melted. If you’re not using the cheese, you don’t need to bake it; you can serve it immediately. Makes 3 – 4 servings.