It can also include tomatoes, onions, garlic, salt, ground black pepper, minced spring onions, and/or flour, as well as various other ingredients.
It typically uses canned sardines, which comes with a tomato sauce which may or may not also be included.
It is commonly regarded as a very cheap and easy meal to prepare, with a reputation similar to instant noodles.
It is usually eaten for breakfast with white rice and banana ketchup.
It can also be eaten as a sandwich with pandesal bread.