Make beef broth as you like (for the good cook with fresh ingredients or just instantly).
Season the ground beef with salt and pepper and shape into small dumplings. Pour this into the flowing broth.
Whisk semolina with water and stir into the broth. Add cauliflower (if fresh, then clean and cut into small florets) and let everything cook for about 15 minutes.
Whisk the egg and stir into the soup after 15 minutes. Switch off the stove.
Finely chop the parsley (also available as frozen food), stir into the no longer boiling soup and serve hot.