The regular room service menu is a very simple menu, but I understand that for dinner you can order anything they are serving in the dining room. Haven't tried it out myself, would rather just eat in the dining room anyway, but it is another dinner selection if you care to use it.
On the Rhapsody which we just came back, during the lunch and dinner hrs. they will show on tv the things that you can order on room service, which goes 24hrs., not the full menu but lots of salads and main entrees, desserts, I am sure most can find a nice meal there. Buck
PS , why would anyone want to order dinner in the room when in the dinning room a wonderful dinning exp. awaits you, unless you are ill of course.