In large skillet or crock-pot with browning unit, brown beef; break up large chunks with fork. Pour off excess fat. In a small bowl, mix together salt, pepper, onion, and undiluted soup. Peel and slice potatoes. In crock pot arrange alternate layers of potatoes and meat, with potatoes on bottom. Pour soup mixture over.
Cover and cook on low for 4 to 6 hours. Turn control to high. Pour cream over all; cover and cook on high for 15 to 20 min.
Makes 6 servings.