Roast the nuts in a pan without fat. Take them out, let them cool down a bit and chop them. Cut ham into thin short strips. Crumble Roquefort. Wash parsley, shake dry and chop the leaves finely. Mix cheese and crème fraîche. Add nuts, parsley and ham and mix well. Season to taste with pepper and a little salt
Melt the butter in a small pot. Brush the pastry sheets with butter and divide them crosswise into 4 strips. Put about 1 tablespoon of ham filling in each left corner. Fold the left corner flush with the long side to form a triangle. Fold the triangle further to the end
Place the finished triangles on a baking tray lined with baking paper and brush with butter again. Bake in a preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for approx. 10 minutes until brown. Turn over after half the baking time. Wash the salad and shake dry. Arrange dumplings on salad leaves and serve immediately