Cut the fennel into slices or strips, remove the greens and save. Fry the fennel in olive oil and cook covered over medium heat for approx. 10-15 minutes until al dente.
In the meantime, peel the oranges, completely removing the whites and slicing the oranges into thin slices. Catch the juice and add to the glass of orange juice, peel off the zest of an orange.
Take the fennel out of the pan. Briefly fry the oranges in the oil, remove them and add to the fennel. Deglaze the pan with the orange juice, add the zest and let reduce a little.
Add the fennel greens. Season with pepper and salt. Pour over the salad and mix carefully or arrange everything in layers.