A breaded and fried cutlet (abbreviation of カツレツ). Refers to fried slices of meat or fish such as tonkatsu.
昼ごはんにカツサンドを買って食べた。
I bought and ate a katsu sandwich for lunch.
近所の店のカツ定食はボリュームがあって安い。
The katsu set meal at the nearby shop is filling and cheap.
そのレシピはチキンカツにも応用できる。
That recipe can also be applied to chicken katsu.