On the Grandeur a few weeks ago I stuck to MDR, all 9 nights.  When I've sailed Oasis class I had access to Coastal Kitchen and/or specialty dining.  Being a newbie on RCI ships I wanted to have the full MDR experience to validate my overall switch to RCI that I've begun.   I was very happy eating in the MDR.  Menu was different each night, with a theme.  Saffron, Portobello, Sage, etc.  I've attached the MDR menus, the theme for the night in the upper left corner. Grandeur MDR Menus.pdf