I've been making this for about 30 years and just realized I had not submitted it. I have also seen it called "Squash Dressing". It is a favorite for me DH, especially when yellow squash is in season.
- Boil squash in small amount of water, (I boil the onion with the squash). Season to taste, with salt and pepper.
- Add butter and all the other ingredients.
- Do not dilute the soup.
- Pour into a greased casserole dish and bake about 30 minutes at 350. (you can top with cheese).