italian-style stuffed mushrooms

Ingredients For italian-style stuffed mushrooms

• 1 lb.

  large mushrooms
• 1/4 c

  olive oil, extra virgin
• 1/4 c

  onion, minced
• 1 clove

  garlic, minced
• 1/2 c

  dry breadcrumbs
• 1/4 c

  mozzarella cheese, shredded
• 2 Tbsp

  parmigiano-reggiano, grated
• 1

  egg
• 1-2 tsp

  dried parsley
• 1/8 tsp

  dried oregano
• salt and pepper to taste
• butter