I spent three nights in Spello and had three wonderful dinners:
La Cantina - beautiful setting with rustic stone walls and cane chairs. Very nice menu. I had the tagliate of beef.
Il Pinturicchio - great meal, very good service. Lamb tonight, prepared in the local style.
Il Molina - another great meal. Very interesting pork dish - sort of a timbale - very tasty.
La Palomba - my server lavishly shaved black truffle over my pasta - oh so good. Had the cinghiale (boar) as my secondi.
Trattoria Mezzaluna - great for lunch, they serve large portions of fresh pasta. Perfect with insalata mista.
Ristorante Siro - very popular local place, lots of pasta choices. More black truffles!
One more thing....there was a street market in Spoleto with two porchetta trucks. I skipped the bread and just asked for a few slices of porchetta with salt and pepper. OMG, so delicious!!!