In a bowl, combine the mushroom soup, brown gravy, onion soup, and water/ginger ale.
Pour the soup mixture over the beef. Cover pan with aluminum foil.
Place in the oven at 300 degrees and bake for 3 hours. Here is the important thing - leave this in the oven for the whole 3 hours. No removing the foil to peek on the beef until the 3 hours is up!
Carefully remove foil. It will be steamy and you don't want to get burned! Let sit for a few minutes to cool and serve over cooked rice, egg noodles, or mashed potatoes. Serves 6-8