The recipe that follows is everything you want it to be. Sweet butternut squash is not only delicious but becomes soft and creamy as it cooks first on its own, and then with the other flavors of the casserole. Quinoa, which is a seed and not a grain as so many think, makes the casserole hearty and filling, and lots of rich cheese plays into the mix to give it a decadent finish.
You can keep this recipe vegetarian by simply subbing in vegetarian stock for chicken. It's also easy to make vegan by using dairy-free cheese instead of real cheddar. Plus, you can add anything to it that you think would make it even more scrumptious. It's a casserole that's everything you want it to be, no matter how you change it up.