01 -
Arrange celery, carrots, onion, and baby potatoes evenly at the bottom of a 5-6 quart slow cooker.
02 -
Place the chuck roast on top of the vegetables in the slow cooker.
03 -
Combine Catalina dressing and dry onion soup mix in a bowl until well blended.
04 -
Pour the dressing mixture evenly over the chuck roast, ensuring full coverage.
05 -
Cover and cook on low for 8 hours, avoiding lifting the lid during cooking to retain heat and moisture.
06 -
Remove any excess fat, shred the roast if desired, and serve with the cooked vegetables and sauce.