2 lbs. or 3 c. mashed, cooked squash
1 c. carrots, cooked and grated
1 c. onion, chopped and cooked

1 stick butter
1 can cream of chicken soup
1/2 pt. sour cream
8 oz. pkg. Stove Top dressing mix

Cook first three ingredients. Drain and add: Butter, soup, sour cream, and dressing mix. Save enough dressing mix to sprinkle top of casserole. Place in casserole so it is 1 - 1 1/2 inch thick. Bake at 375 degrees for 25-35 minutes.