1 lb. squash, washed and cooked
1 small onion, chopped
1 (8 oz.) container sour cream
1 can cream of mushroom soup
1 small can sliced water chestnuts
1 c. shredded Cheddar cheese
1 large pkg. Stove Top stuffing (flavor of choice)
1/4 c. melted butter

Combine stuffing with butter.

Bake at 350°F for 35 to 40 minutes or until top is golden brown around edges.