This recipe is everything you want a side dish to be: It's delicious, it's easy, and it doesn't take a whole ton of time. There also aren't a lot of steps, so all you have to do is get everything together and then get on with making the rest of dinner while it bakes up beautifully in the oven. When it's done, you have a dish that's simple but definitely not plain.
The half-moons of butternut squash are just one of the things that make this dish so beautiful. The salty Parmesan cheese dusted over the top is also very pretty, but also plays perfectly off the sweetness of the squash. The fresh parsley added at the very end teams up with the onions to provide a nice earthy flavor throughout. Don't be surprised when you find yourself reaching for seconds or even thirds.