Welcome to Bento Asian Diner! Serving up popular, delicious Asian cuisine right here in Broken Arrow. Enjoy authentic Asian food without the expensive airfare. So, come on in and dine to know us. Bento is a single-portion takeout or home-packed meal common in Asian cuisine. A traditional bento consists of rice, fish or meat, and one or more pickled or cooked vegetables, usually in a box shaped container.