In Japan, “three-color rice” is often used in bento lunches.
It’s a food that children love, so it can truly be said to be a “mother’s food.”
In particular, the dish made with minced chicken is called “soboro donburi.”
For more details, please refer to the blogs listed below.
英語でそぼろ丼 Saotome Farm’s cooking | ★一人で有機農業始めたからさぁ大変!さおとめファームレシピ&日記★ (ameblo.jp)
If you find it difficult to cook for yourself, you can find food in the basement food section of a department store.