Not sure where the name came from, but tonight it will be Virginia Chicken Casserole. I'm guessing the reason for letting the casserole sit overnight is so that the flavors can marry. Anyway, this is another favorite we enjoy alot. Recipe is from Moms Best Recipes. The original recipe calls for cream of mushroom soup. I would not touch mushrooms with a ten foot pole so I subbed. Use what your favorite is.