I dug up a bunch of recipes for zucchini from Allrecipes.com. All started with a base of onion and garlic, sauteed in butter or olive oil (I mostly used the oil), then added chopped or sliced squash/zucchini, seasonings and at the end coarsely chopped tomatoes. One added fresh green beans but the beans don't cook as fast as the other ingredients and I don't like the crisp beans with the squash and tomatoes getting squishy.
We've got bags and bags of the various combos in the freezer now - squash all winter!
I bet they would work well with spaghetti squash, too!
http://allrecipes.com/Recipe/Gingered-Squash-Saute/Detail.aspxhttp://allrecipes.com/Recipe/Spicy-Pakistani-Zucchini/Detail.aspxhttp://allrecipes.com/Recipe/Greeked-Zucchini/Detail.aspxhttp://allrecipes.com/Recipe/Squash-and-Bean-Saute/Detail.aspxhttp://allrecipes.com/Recipe/Squash-Medley/Detail.aspx (I left out the bacon.)
http://allrecipes.com/Recipe/Rice-with-Summer-Squash/Detail.aspx (I made this one with the left overs from the other recipes and used some left over brown rice - it was surprisingly good - I chopped the carrots and squash in small 1/4" dice so they mixed nicely with the rice.
The smells of the different seasonings really changed the impact as we cooked each recipe. We have not actually eaten all of them, but all we have eaten have been good. And if they taste half as good as they smelled, they have to be good!