This is a fantastic restaurant, which oozes with character. Hidden away in the beautiful Tuscan countryside, you'll find that the food is amazing and - as others have said - comes off the back of a menu described by the owner/head chef (who, incidentally, was wonderfully friendly to us and was perfectly happy to prepare a pescetarian menu for my wife). The restaurant's staff know what they're talking about, and were also very kind to us all evening.
One other point of work noting: the night before visiting Bottega del 30 we ate at Poggio Rosso at San Felice (which is very near to Villa a Sesta, where Bottega del 30 can be found). The menu at Poggio Rosso is more expensive than Bottega del 30, but the food at Poggio Rosso is simply nowhere near as good. In a choice between the two, Bottega del 30 easily wins. If you've got two nights in the area (and even if you are staying in San Felice), I'd suggest going for Bottega del 30 and Villa di Sotto - both of which are in Villa a Sesta.
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