Everyone has said pretty much everything helpful.

Apples and onions is one of my favorite side dishes ever (thanks to Laura Ingalls Wilder and "Farmer Boy", I have to admit... it's where I first read about the combination. YUM!).

You can cut the squash into pieces, blanch and freeze on a baking sheet so they stay separate till frozen and bag up for cooking later.

And as many have noted yes to greens being sauteed with oil and garlic.