The deep-fried skewers of a single item, such as meat, vegetables, seafood, etc. are not called kushikatsu but usuallly called 'fried something' or 'fried skewer.'
肉や野菜、魚介類など単独の具を揚げたものは串カツとは呼ばず、通常は「～フライ」や「串揚げ」等と呼ばれる。