I don't know the answer (as I only dined there without staying). I suggest you contact the George direct.
As a recent visitor to The George, you can have just bed and breakfast and don't have to book an evening meal. The facility is there for an evening meal if you wish. I suggest you contact The George directly about breakfast deals. Their prices are reasonable and the breakfasts are very good. I hope that this helps.
Get an answer from The George staff and past guests.