Rinse the beans under cold water and let the water drain.
Peel the onion, finely chop and fry in vegetable oil until golden brown.
Cut the bacon into small strips,
chop the garlic and add the bacon to the onion, fry lightly so that the bacon does not burn.
Put the beans in a salad bowl, add bacon with onion and garlic, season with red and black pepper, add a little salt (be careful with salt, bacon and olives are too salty).