You’ll find vegetarian options in Manila and Cebu, but they can be limited at local eateries. It’s worth trying Mang Inasal—while they’re known for grilled meats, you might find sides like rice, desserts, or drinks that suit your taste. Bringing some food packets as a backup could also be a good idea. To check its Menu visit: https://mangmenuprices.ph
If you are vegetarian then you can take your own food otherwise there are many fast food outlets list on this website (https://theopeninghour.com/) which offers vage food here is the list of these outlets. You may visit one of these in Philippines for your food neeed.