Ua Si Khai – Laotian Stuffed Lemongrass. Laotians love lemongrass. Not only is it good for health, its citrusy flavour is unique. Ua Si Khai is one of the most popular Laotian specialities. To enjoy it at its best, serve with steamed jasmine or sticky rice, slices of fresh ginger and small pimentos. Are you hungry now?