Combine ground beef, Lipton soup, Worcestershire sauce, mustard and Coke, stir to combine ingredients well.
Cover and cook on HIGH for 4 hours, stirring every hour or so.
When cooking is completed drain the excess liquid from the beef.
Return the beef to the crockpot and keep on the warm setting until you are ready to eat.
Assembly
Placing bottom half of a burger bun on a plate and scoop desired quantity of meat on the bun. Make sure to use the spoon to press the meat down onto the bun, or else it can get messy.
Top the meat with diced onion, pickles, and mustard.