Wash kale leaves thoroughly, remove thick stems, and finely chop them.
Massage the kale with a little lemon juice and salt for 2–3 minutes to soften the leaves.
Thinly slice fennel using a sharp knife or mandoline for delicate texture.
Rinse and drain cooked beans (such as cannellini or white beans).
In a large mixing bowl, combine kale, fennel slices, and beans.
Prepare dressing by whisking olive oil, lemon juice, garlic, salt, and black pepper.
Pour dressing over the salad, toss well, and let it rest for 10–15 minutes before serving so flavors blend nicely.