Squash Casserole - cooking recipe

Ingredients

4 c. cooked squash
1 minced onion
1 can cream of chicken soup
1 c. sour cream
1/4 c. sliced water chestnuts
chopped pimentos (optional)
2 c. grated Cheddar cheese
1 stick margarine
1/2 pkg. Pepperidge Farm dressing

Preparation

Bottom layer:
Cook squash and onion together about 10 minutes; drain.
Put into casserole dish.