If you are near Greenbelt, head to one floor above Havana, and there is Banana Leaf, a Singapore style restaurant serving Prata, and local favourites .. just don't faint at the price, though, in Singapore price, it is a bargain. Like, price between 5 $ to 15 $ for a nice meal .. in Philippines price, it is pricey .. but for the ambience .. and location, and availability, it is worth it ..
http://www.munchpunch.com/banana-leaf-greenbelt-3/menu
PS: don't expect 100% authentic taste, as it has been filipinised to some extent ..
Personally, I never felt bad paying by Credit Card in Philippines, vs being terrified to use it in Malaysia .. of course, I make sure the amount if fair to justify the use of card ..
beer is available everywhere ..
where will you be putting up ?