Place the chuck roast in the slow cooker.
Sprinkle the ranch, Italian dressing, and brown gravy packets evenly over the top of the roast.
Pour the water around the sides of the roast, being careful not to pour it directly over the seasoning so it stays in place.
If using, arrange the chopped vegetables around the roast.
Cover and cook on low for 8 hours, or on high for 4-5 hours, until the meat is tender and easily shreds with a fork.
Once cooked, remove any large bones if present, then shred the roast using two forks.
Stir the shredded meat back into the juices and vegetables in the slow cooker to soak up all the flavors.
Serve warm, spooning the rich juices over the meat and vegetables.
Enjoy!