Assuming you're gonna be hotel-based, chances are you will be in one of three areas: Makati, Ortigas Center or Manila Bay.
In Makati, head to Abé in Serendra, Café Juanita or Bistro Filipino in Fort Bonifacio, Fely J's, Mesa, or Sentro 1771 in Greenbelt.
In the Manila Bay area, head to the Malate area and look for Bistro Remedios and Cafe Adriatico.
In Ortigas Center, there's Cafe Juanita in the Kapitolyo area...and...actually not much.
There are a bunch of Kamayan and Barrio Fiesta restaurants around and those work in a pinch as well....