Flattened top of the mushroom, take out the button part and chopped together with parsley, onion, paprika. Prepared hot pan with olive oil then put together the chopped button mushroom, onion, paprika. Sauté for a while then add breadcrumb and parsley. Add salt and pepper to adjust. Low the heat
Meanwhile on other pan pour olive oil on base, put in the champignon/portabela mushroom, cooked both side for 1 minute until a bit soft. Put aside.
Prepared baking dish with olive oil base, put the flattened mushroom, filled with the mixture, add the old Gouda cheese. Baked in oven for 10 minutes.
Stuffed mushroom ready to serve!