Mix the ground beef with salt, pepper, garlic powder. Turn the Ninja Foodi on high sear/sauté or put a large pot on the stove and turn the heat to high. Add the ground beef and onions and begin to brown.
As the beef begins to brown, break it up into chunks. You don't want the meat to be as fine as taco meat, having bite size chunks in the soup will give it that "burger" feel.
When the ground beef is about 75% cooked, you can drain the ground beef if you are using a fattier cut and don't want the extra fat in the soup. Add in the Worcestershire sauce, ketchup, and mustard. Stir to combine and finish cooking the ground beef.
Add in the beef broth and the shredded cheese. Stir and reduce the heat to medium or medium low. You only want the soup at a simmer, not boiling.
When the cheese has almost completely melted, add in the sliced and quartered pickles and the heavy cream. Stir and warm through.
Ladle into bowls and add toppings of choice. Enjoy!