Add the condensed cream of potato soup and the condensed cheddar cheese soup directly to the slow cooker. Do not dilute the soups with water. Stir gently, just enough to combine the soups and broth around the beef while still leaving the meat in small chunks.
Cover and cook on LOW for 6 to 7 hours or on HIGH for 3 to 4 hours, until the ground beef is fully cooked through and breaks apart easily when stirred. Halfway through the cooking time, give the soup a quick stir to help the beef finish breaking up and to keep everything cooking evenly.
Once the beef is cooked and the soup looks thick and creamy, stir in the shredded cheddar cheese a handful at a time until melted and smooth. Taste and adjust seasoning with salt and black pepper if desired (the canned soups and cheese are salty, so taste before adding).
Ladle the hot cheeseburger soup into bowls and serve immediately. If you like, top each bowl with extra shredded cheese, chopped green onions, or a few pickle slices for a classic cheeseburger vibe.

For a slightly lighter version, you can use 93% lean ground beef and reduced-fat condensed soups, though the texture will be a bit less rich. If you want more veggies without adding extra ingredients to the main 5, stir in a cup of frozen mixed vegetables or frozen diced hash browns during the last hour of cooking. To stretch the soup for more people, add 1 extra cup of chicken broth and serve it over cooked egg noodles or rice. For a bacon cheeseburger twist, sprinkle cooked, crumbled bacon over each bowl right before serving. If you prefer a thicker, stew-like texture, leave the lid off for the last 20–30 minutes on HIGH to let some liquid evaporate, or mash a few of the potato bits from the cream of potato soup against the side of the slow cooker to naturally thicken it. This soup also holds up well for meal prep—cool completely, refrigerate in airtight containers, and reheat gently over low heat on the stove or in the microwave, adding a splash of broth or milk if it gets too thick.