Preheat oven to 325 degrees.

Wash mushrooms and remove stems. Finely chop stems and reserve. In a large skillet, melt butter and cook onion, pepperoni, green pepper, garlic, and chopped mushroom stems until tender but not brown. Add crackers, parmesan, parsley, salt, oregano, a dash of pepper, and mix well. Stir in broth.

Spoon mixture into mushroom caps, heaping tops. In a shallow baking pan with 1/4-inch water covering bottom of pan, place stuffed mushrooms. Bake uncovered about 25 minutes until heated thoroughly.

This recipe yields 12 to 15 pieces.