After considering the carb counts in the "cream" soups, I would go with this one instead:
http://allrecipes.com/Recipe/Amazing...er/Detail.aspx
The 10.75 oz. can of Cream of Celery Soup from Campbell's has 20 grams of carbs (not deducting the 2.5 grams Fiber). If you add the 2 cans per the 1.5 pound roast and get 6 servings, that's 5.8 grams of Net Carbs per serving, but only if you have a small .25 pound serving -- that's pretty tiny!
Especially for someone on Atkins.
But maybe my portion sizes are skewed too big in my mind? What size portion of meat do you all usually have for dinner? A quarter pound, or more?
I will make it this time since it is already cooking, but next time I will be on the lookout for lower carb recipes, like the one above that uses red wine, garlic & other seasonings for flavor