Prepare the slow cooker: Place the chuck roast in the slow cooker.
Season the beef: Sprinkle the brown gravy mix and ranch seasoning over the roast.
Add liquids & butter: Pour in the beef broth and place the butter on top of the meat.
Slow cook: Cover and cook on low for 8 hours or high for 4-5 hours until the beef is tender and easily shreds.
Shred the beef: Remove the roast from the slow cooker, shred it with two forks, and return it to the broth.
Add the noodles: Stir in the frozen egg noodles and cook on high for 30-45 minutes, stirring occasionally, until the noodles are fully cooked.
Serve and enjoy: Ladle into bowls and serve warm.