Preheat oven to 450 degrees. Soak the bread in the milk. Melt butter in medium skillet. Add onion and saute for 2 minutes. add mushrooms and saute for 5 minutes. Add garlic and saute for 1 minute. In a mixing bowl, add ground beef and egg. Squeeze the bread dry and add to bowl. add onion mixture, parsley, sage, oregano, thyme, salt, pepper, nutmeg, port and cognac. mix well. brush a meatloaf pan with melted butter. Place meat in pan. Decorate top with the rosemary. Bake for 30 minutes. Reduce heat to 400 degrees and bake for 15 minutes more. Remove from oven and let rest for 10 minutes.