Pre-heat sauce pan and combine olive oil and butterOnce butter is melted, add the onions, carrots and celery. Cook until caramelized, about 10 minutesAdd ground meats and prosciutto, making sure to break them upCook until meats are brownedCombine wine and tomato paste and add them to the saucepan. Simmer for about 3-4 minutesAdd veal stock, parsley, sage, thyme, nutmeg, salt and pepper and bring to a low simmerCook over low heat for approximately 1½-2 hoursAbout ½ hour before sauce is finished, boil water for the pasta and add a good deal of salt to it (should taste like the ocean). Cook pasta and reserve some of the cooking liquid before draining itRemove the sauce from the heat and add in the heavy creamToss the pasta with the sauce, adding some of the cooking liquid, if necessary, to break it upServe and enjoy!