4 c. sliced onion
1 1/2 c. cornbread stuffing mix
1 can cream of mushroom soup
1/2 c. sour cream (I use imitation)

Cook onions until transparent in butter. Mix with other ingredients. Salt and pepper to taste. Turn into a greased casserole and top with buttered crumbs. Bake at 300 degrees until bubbly and brown. Good!