Here is a classic recipe for making savory squash. This recipe has been adapted from a recipe first published in the spring issue of Good Housekeeping Magazine in 1948.
Pre-heat oven to 375º.
Remove stringy pieces of squash and cut into 8 even pieces.
Place in a two-quart casserole dish, and cover with onions.
Rub butter over top of onions and squash. Pour tomato sauce over.
Cover and bake for 1 hour.