Previous posters are right - Tutto Italia is on the plan. For Italian you might try Il Mulino at the Swan, which is not.
Bistro de Paris is the only restaurant located inside a theme park that is not on the dining plan.
These are the restaurants that are not on the plan:
All restaurants at the Swan/Dolphin
All restaurants at Shades of Green
Downtown Disney TS:
Portobello
Fulton's
Rainforest Café
T-Rex Cafe
Bongos
Wolfgang Puck's Dining Room (upstairs; not the cafe - they take it)
House of Blues
Paradiso 37
Epcot TS:
Bistro de Paris
Animal Kingdom TS (at the park but outside the gates):
Rainforest Cafe
Grand Floridian:
Victoria and Albert's
Garden View Tea Room