Tensei Reijou wa Shomin no Aji ni Ueteiru

The daughter of a Duke, Cristea, remembers her past life as a Japanese office worker upon eating a specific dish. Even though she was living a life without any inconvenience as the princess, ever since she got her memory back, she has had an unquenchable desire to eat Japanese food! Finally she decides to look for the ingredients to cook them herself! But as she enjoys the tastes of the common people, rumors of her being a "princess who eats repulsive things" begin to circulate...?This is a gourmet fantasy about a reincarnated princess scrambling for food every day.

(Source: Alpha Manga)