1 package (1 ounce) dry onion soup mix
1 1⁄4 cup water
5 1⁄2 lb pot roast
In a slow cooker, mix cream of mushroom soup, dry onion soup mix and water. Place pot roast in slow cooker and coat with soup mixture. Cook on High setting for 3 to 4 hours, or on Low setting for 8 to 9 hours.