Besides being a great side to simple roast chicken or beef tenderloin, seasonal squash provides more than a day's worth of vitamin A and about half the daily recommended vitamin C.
This version subs in mushrooms for the traditional beef without losing a lick of flavor. So savory and juicy after a good simmer, mushrooms are a natural for this dish.
White truffle oil has an intense earthy flavor that wakes up ordinary mac and cheese. We also get extra flavor by steeping the milk with onion and bay leaf.