1 can Campbell's French Onion Soup
1 can Campbell's Beefy Mushroom Soup
Place the roast in a crockpot. Pour the French onion soup and beefy mushroom soup over the roast. Cook on LOW for 8 to 10 hours.
Pour off the gravy into a skillet. Add flour paste to thicken, if desired, and heat, stirring, until of desired consistency.