I was just fooling around with what was in the pantry/freezer and made the following soup which came out delicious:
1/2 onion, 2 carrots, 1/2 large celery root, diced, small handful of pearl barley, handful of red lentils, handful of cilantro, small amount of the following: turmeric, ground ginger, cumin, dried basil. generous amount of sunflower oil and some olive oil. one large frozen chicken breast.
Cook vegetables, beginning with onions and carrots until soft, add celery root and barley until barley is slightly browned. enough water to cover and chicken bouillon. add the rest of the ingredients as it simmers - and when barley is cooked to a little past al dente, it's done. it was quite good.