Boil the pasta as it is written on the package, then rinse them with cold water. Meanwhile, in a Teflon pan melting the butter and fry the mushrooms, bacon and chicken, which are chopped. Optional you can add spices to your taste or 1 chicken broth. In the already cooked spaghetti put the cream and stir, then put and fried mushrooms, bacon and chicken. Mix again and transfer to a baking dish (preferably of Jena glass or ceramic) - top initiating cut into slices processed cheese. Top grated cheese. Put in a preheated moderate oven temperature (170-180 C) - bake for about 20 minutes until the cheese is browned.