Ingredients

• ¼ cup extra-virgin olive oil plus 1 tablespoon, divided
• 1 cup chopped onion
• 3 cloves garlic, minced
• 2 pounds baby bella mushrooms, sliced
• 3 tablespoons all-purpose flour
• ¾ teaspoon salt
• ½ teaspoon ground pepper
• ½ cup sour cream
• ¼ cup parmesan cheese plus 1 tablespoon, divided
• ¼ cup chopped fresh parsley plus 1 tablespoon, divided
• 1 tablespoon lemon juice
• ¼ cup panko breadcrumbs