To make the soup ahead, omit the pasta and refrigerate or freeze the soup. As the soup reheats over medium heat, cook pasta separately according to package directions, then stir it in shortly before serving. Use leaves from celery stalks as a garnish.
Carrots, potatoes, mushrooms, onions, and celery are cooked along with the meat in a mixture of dried onion soup mix and condensed golden mushroom soup.
