Wash and clean the lamb`s lettuce and place in a large bowl. Peel the oranges, remove the fillets, cut in half and add to the salad. Squeeze the rest of the oranges over the salad.
Roast the sunflower seeds in the butter in a pan over medium heat, let them cool and finally spread them over the salad. Roughly chopped walnuts can also be used instead of the sunflower seeds.