The UI of the kiosks are quite blatently designed to try to sell you more stuff than to make ordering easier. Give me the same interface you give the employees and I'd be a lot happier.
are we having different kiosks in china? because i don't remember any experience about things being pushed on me. there is a list of categories with one category being recommendations or hot/onsale items or something like that, and a list of items in each category. you scroll through and pick the item you want. when you select an item you get a few recommendations to go with that. usually they make sense or i ignore them.