걸로 하고

let's go with

→ 것+으로
phrase Rare #25,287
let's go with 걸로 is a shortened form of 것으로. With 하다, it expresses choosing something or deciding to treat something a certain way.
KO: 이걸로 하고 주문할까요?
EN: Shall we go with this and place the order?