While I didn't get to eat the Vigan Empanada, I was able to eat at Vigan's Cafe Leona. It is located at the Clle Crisologo, right where the street start, after the church.
And I had the Longanisa Pizza, among a lot more food. The longganisa pizza was good,except that we wanted more longganiza on it. The other table I think tried the pakbet pizza but Im not sure. We dug in as soon as the pizza touched our table!
Ans I kid you not, it was gone in a blink of an eye!