We stayed here for one night and chose it because of its history as a former convent.
This was a special place to stay. It is a lovely big old house in very good repair. It is a bit further out from the other B&Bs in town (perhaps 1km) but the house is set in a very pleasant garden with many trees and next to the church. We really enjoyed sitting out on the balcony in the early evening with a glass of wine and cheese and biscuits - so peaceful and relaxing.
If you are inclined, there is a large and welll equipped kitchen where you can prepare meals if you want to defray the costs of travel.
Things to note here are: (i) the rooms and ensuite bathrooms are small (it was a former convent) but ours (Room 4) was well set out and the ensuite, while small, was modern and sparklingly clean; (ii) all bedrooms are upstairs and so you need to be ready to carry your bags up a fair flight of stairs; (iii) Michelle and Glenn (who were charming) do not live on-site and so breakfast is self-help continental style from Monday thru Friday. On this latter point, Michelle was concerned to ensure that we had whatever type of cereal, bread, milk etc that we liked on hand. I understand that Michelle and Glenn do a served breakfast on weekend mornings (check).
At $120 for a night this was great value accommodation.
Re evening meals in Morpeth, Í think the pick is the original Arnott's Bakehouse Restuarant but it was closed on a Sunday night so we couldn't visit. We went to the Commercial Hotel on the main street, which is clean and neat and has its own micro brewery. I would caution against meals there though, we found it to be very ordinary quality pub food. Perhaps the Wood Fired Pizza Restaurant at the Maitland end of the main street would be a better option.
Morpeth is a lovely historic town to visit. Keep in mind that many shops are closed on Monday and Tuesday.