Line a 3-1/2- or 4-quart slow cooker with a disposable slow cooker liner. Combine meat, potatoes, and carrots in prepared cooker. In a bowl stir together condensed soup, water, and soup mix. Pour soup mixture over meat and vegetables in cooker.
Cover and cook on low-heat setting for 8 to 9 hours or on high-heat setting for 4 to 4-1/2 hours. Makes 4 main-dish sevings (6 cups).