There's a new vegetarian place in San Juan called Little White Cottage, and they made it vegan-friendly on the spot for me by marking the vegan items in the menu.
I tried the longanisa (loved it) and tofish with seaweed (I liked the dish itself but the soy ginger sauce was just ok).
I was still feeling a bit hungry so I ordered something from their cafeteria-style lineup. It's tofu steak if I am not mistaken. Not bad as well.
Little White Cottage is located at 39D A. Bonifacio Street, San Juan. Open everyday. Check it out!