Thank you all very much.
I have cruised before, so I know that the first evening in the buffet and MDR can be a little over whelming. At the time of writing, I do not know what time we embark, we may not have the luxury of having masses of time to 'physically' explore all of the options and then picking the right time before they are snapped up by others who are more organised than us.
Using one of the causal dining options is an excellent idea - thank you!
I also aware that others may read this post for information, so I hope they find your advice useful.