Ingredients
Description
Add the onions, and tomatoes as a layer on top of it. Add salt.
Pour the olive oil trying to evenly distriute it on the beans as much as possible.
Cover the lid, and cook at medium heat, until the beans change color, become darker and soften. If necessary add a few spoons of water if the pot runs out of water, but that probably won't be mecessary.
Serve hot or cold (better as cold).