Hi Kristen,
I absolutely love the
Rose & Crown Pub & Dining Room as it reminds me of home.
You will find that most of the items from the Rose & Crown Pub menu are also available on the Dining Room menu.
If their is something which you would particularly like to eat which is not, I would recommend asking your server if it is possible to order something from the Pub menu. Whilst this can't be guaranteed you will find that Disney always do their very best to accommodate Guests requests.
While I know that you can't order restaurant food in the Pub, I'm not sure if the reverse is true.
The outdoor patio at this restaurant does offer a prime view of IllumiNations: Reflections of Earth but a table on the patio cannot be guaranteed and outdoor dining cannot be requested in advance. I would recommend that you arrive approximately 30 minutes prior to the time of your dining reservation and be sure to state that you would like to be seated on the patio.
Wishing you a magical trip filled with memories which will last a lifetime!