Skinny Bolognese, Amazingly Rich, Very Filling, Served Over Nutritious Spaghetti Squash...Everybody needs a good recipe for Bolognese and this sauce is really fabulous. My recipe is skinnier and healthier than most. I’m serving it over spaghetti squash. The squash works great and is a terrific substitute for pasta. The skinny for 1 serving of sauce including the spaghetti squash is 194 calories, 3.6 grams of fat and 4 Weight Watchers POINTS PLUS.