Cut the mushrooms into slices. Cut the chives into rolls. Chop the onion. Mix the cream cheese with salt, pepper and chives.
Preheat the oven to 200 ° C.
Fry the bacon in a pan over low heat until crispy. Remove from the pan and drain on kitchen paper. Fry the sliced mushrooms in the remaining fat in the pan and then remove them from the pan. Sauté the chopped onions in the same pan (adding a little oil if necessary), then add the maple syrup and let it caramelize.
Put breads, sandwiches, pita or whatever you want to use in the oven and toast until light brown.
Brush the sandwiches with the cream cheese and sprinkle with the grated cheese. Then layer the mushrooms, onions and bacon on top of each other, close the sandwiches and enjoy!