Slice the celery stalks quite thinly - 1/8-inch or so. Set aside.
In a small bowl, make a paste with the olive oil, lemon juice, and Parmesan. Set aside.
In a large bowl toss heated beans with the olive-Parmesan mixture. When well combined, add the celery, raisins, and most of the almonds. Toss once more. Taste and add a bit of salt if needed.
Serve in a bowl or platter topped with herb flowers and/or celery leaves.