羹藜含糗

gēng lí hán qiǔ

nothing but herb soup and dry provisions to eat (idiom); to survive on a coarse diet

à la guerre comme à la guerre

gēng

thick soup

name of weed plant (fat hen, goosefoot, pigweed etc)

hán

to keep in the mouth

qiǔ

dry rations (for a journey)