Butternut Squash and Pear Gratin is absolutely marvelous. This butternut squash dish includes pears, leeks, green onions, thyme, and Fontina and Parmesan cheeses. Butternut Squash and pears pair beautifully with parmesan and fontina cheeses providing a sweet and savory combination that’s irresistible. It’s a fantastic side dish for holidays like Thanksgiving, Christmas or Easter. Healthy, low calorie, and gluten free.