How about making your own home-made sardines. A great way to cook your sardine fish and tomatoes. For a version more filipino you can replace the sardines with galunggong fish.
1 kilo of sardine fish (you can replace this with galunggong) cleaned and washed
some cooking oil
3 tablespoons of flour
1teaspoon of chili powder (optional)
one fourth cup of olive oil
20 cloves of garlic minced
1 big onion sliced
1 teaspoon of fresh ginger chopped
half a cup of tomato purée (tomatoes skins and seeds removed puréed in a blender)
1 teaspoon of tomato paste
4 tablespoons of vinegar
Dredge the fishes with flour and fry them on a shallow pan with some cooking oil. Set them aside. In another casserole, put some olive oil (about 3 tablespoons) and start sautéing your garlic, onion and ginger. Add the tomato paste, tomato puree and vinegar. Put your fried fishes and chili powder. Let it simmer over medium fire. Pour the rest of your olive oil. Salt and pepper to taste.