As we saw last year, several rarely (if ever) open restaurants will be serving steadily through the weeks when Disney World is offering its free dining promotion. Here are the details:

Tomorrowland Terrace Cafe Will Offer a Table-Service Buffet on Sunday Evenings
From 5:30pm to 9pm on Sundays, beginning August 22nd and running through September, Magic Kingdom’s Tomorrowland Terrace Cafe will offer a dinner buffet for guests. Pricing currently stands at: Adult: $37.28, Child: $19.17. The menu for the buffet will include beef and pasta dishes, vegetables, fried rice, rolls, and desserts. Booking is available on the DisneyWorld.com site.

Also, the Tomorrowland Terrace “Noodle Station” has changed up its menu to serve American classic fare (burgers and sandwiches, chicken nuggets, salads, etc.) for lunch and will switch to its Asian menu after 4pm.

El Pirata Y el Perico Restaurante Will Be Open for Lunch
This Adventureland location serving quick-service Mexican cuisine will be open for lunch from August 15th through September 4th, 2010.

Diamond Horseshoe Will be Open for Dinner
This Frontierland eatery will extend its hours through dinner time (5-9pm) from August 15th through the 28th, and from September 19th through October 2nd, serving a table-service style turkey dinner akin to what you’ll get at Liberty Tree Tavern next door (via WDWMagic; booking for September/October dates not available on Disney site at time of this writing). Counter-service lunch will still be available at the Diamond Horseshoe from 11am-3pm serving sandwiches and other grab and go items.