This isn't the first time we've tackled this dish, of course, but this time we wanted to retain as much cheese as possible for both flavor and that nonnegotiable gooey texture, so the real work happened with the béchamel. Instead of the traditional buttery, heavy sauce, we turned to an unlikely hero for a boost: butternut squash. Combined with nonfat milk and Greek yogurt, the squash adds a rich, nutty flavor, sneaks in some vegetable, and brilliantly mimics the color and creaminess of cheddar sauce. A trio of bold cheeses packs more flavor than a one-cheese approach, while grooved pasta ensures full sauce coverage for a saucy favorite with all kinds of comforting goodness.
The Classic: •908calories per serving • 963 milligrams sodium • 36 grams saturated fat
The Makeover: •390calories per serving • 589 milligrams sodium • 6.1 grams saturated fat