If you are still wondering whether Knorr cubes has msg or not, then try eating in this cafeteria-style restaurant i.e. you queue up and point the food on the tray you want to be served.
I can make an argument that there's a VERY good reason the food here is tasty and appetizing, and that's because they uses a "secret" flavor-enhancer (hint it is not Knorr but very similar). I found that out while waiting for my turn and watching the server pour that magic dust to the dish. Congratulations in advance if you really like the food here, because I'm telling you you will keep coming back.