Take out the stems of the mushrooms and chop finely

Heal olive oil in pan

Pan should be on medium heat, put the onions for a couple of minutes until soft but not brown.

Add ground beef and stir occasionally for ten minutes.

Add parsley and chopped mushroom stems and stir for a couple more minutes.

Add a small amount of parmesan cheese to your liking, season with salt and pepper and set aside.

In a different container, put bread crumbs, shredded cheeses, salt and pepper to taste.

Grease mushrooms with melted butter and put into baking pan.

Add the stuffing and top with the bread crumb and cheese mixture.

Bake for 10 minutes covered at 370degrees. switch to broiler for five minutes to brown crust.