South of Siena:lunch
There is a restaurant in the (moated) castle associated with the Monte Oliveto Maggiore monastery (with the stunning Signorelli and sodoma frescos) which was solid when we were there 20 yrs ago. Outdoor seating and the monastery is right in the middle of the crete. It mindboggling to see those grey hills and realize that they exist outside the Sienese school of painters.
Id check slowfood - I think some reccs have been added in some of the little towns in that area in recent years but I dont remember those towns that we visited (Asciano, etc) offering a superb view of the scenery.
We've had lunch several times at La Tavernetta in Lucignano. It has a lovely garden with a very Tuscan view (hill-ish, trees, grapevines, red-roofed houses, etc.). The food is good, and the owners are nice people. Here's their website:
They are located between Sinalunga and Monte San Savino.
Whoops! Sorry--That's north of Siena.