Once the vegetables are in the slow cooker, place the roast on top of the vegetables. A can of mushroom gravy goes over the top of the roast and a cup of water is poured around the sides of the roast. The water is necessary to help soften and cook the vegetables. The flour, mushroom gravy and water combine to make a wonderful gravy that can be served with the roast, if desired.
Once everything is in the slow cooker, put on the lid, turn the temperature setting to low and your supper is on its way to being cooked. The only other thing needed to complete the meal is a pan of cornbread!