Squash Casserole - cooking recipe

Ingredients

squash, cooked and drained
1 c. sour cream
8 Tbsp. butter
1 onion, diced
1 can cream of chicken soup
1 bag cornbread dressing mix

Preparation

Mix all ingredients (except 1/4 bag dressing mix) and bake 1 1/2 hours at 350\u00b0.
Put rest of dressing mix on top before baking.