• Preheat the oven to 375 F/190 C/170 Fan. Coat a baking sheet with cooking spray (or use baking paper) and arrange the mushrooms on the sheet.
• Melt 1 tablespoon of butter in a pan over medium heat. Add the onion and garlic and cook for 3-4 minutes or until softened. Remove the onion mixture from the pan.
• Add the sausage to the pan and cook for 5-6 minutes, using a spatula to break up the meat into smaller pieces.

• Place the sausage, onion mixture, cream cheese, parmesan cheese, cheese and 3 tablespoons of parsley in a bowl. Stir to combine.
• Spoon the sausage mixture evenly into the mushroom caps.
• Melt the remaining 2 tablespoons of butter in the microwave and stir in the breadcrumbs to coat.
• Sprinkle the breadcrumb mix over the mushrooms.
• Bake for 20 minutes or until tops are browned and mushrooms are cooked through. Sprinkle with parsley, then serve.