Maou-jou no Ryouriban: Kowamote Mazoku Bakari Dakedo, White na Shokuba desu

Tsumugi, a human who works in the dining hall of the Demon Lord's Castle, actually comes from another world. Stranded homeless and on the verge of death in her original world, she is willing to work hard with fearsome monsters in order to live her dream life where food, clothing and shelter are guaranteed...! An isekai gourmet comedy set in the Demon Lord's Castle.

(Source: Kurage Bunch, translated)