01 -
Place chopped celery, sliced carrots, sliced onion, and halved baby potatoes evenly at the bottom of a 5 to 6-quart slow cooker to ensure even cooking and flavor absorption.
02 -
Set the chuck roast on top of the arranged vegetables in the slow cooker.
03 -
In a separate bowl, thoroughly mix the Catalina dressing with the dry onion soup mix until fully blended.
04 -
Evenly pour the dressing mixture over the chuck roast covering all surfaces to infuse flavor.
05 -
Cover the slow cooker and cook on low heat for 8 hours without removing the lid to maintain temperature and ensure tender meat.
06 -
Once cooked, shred the roast removing any excess fat and serve hot with the vegetables and sauce.