For the cheeseburger soup, fry the bacon and onion in hot oil, add the minced meat and fry, add the leek and season.
Add 1 liter of water, stir in the mushroom soup, cook on low heat for 5 minutes. Break the mushroom cheese into small pieces, let it sit in the soup for a few minutes, then stir well.
Sprinkle cheeseburger soup with chives and serve.