Scalloped Potatoes with sausage

1/3 cup margarine 1/2 cup flour 1 teaspoon salt 1/2 teaspoon black pepper 2 1/4 cups milk 4 medium potatoes , sliced thin 1 medium sweet onion , sliced thin 2[...]

2 cups cooked cubed ham or 2 cups farmers sausage 4 cups thinly sliced potatoes 1 Arrange cubed ham in large casserole dish. Pile on sliced potatoes. Season[...]