Wash the potatoes and cook in plenty of boiling water for about 20 minutes. Rinse under cold water, drain and peel. Loosen 125 g green leaves before the savoy cabbage, wash, clean and cut into fine strips.
Process the remaining savoy cabbage in another way. Peel and finely chop the onion.
Heat the oil in portions in an ovenproof pan (approx. 24 cm Ø). Fry the potatoes, savoy cabbage and onion for approx. 5 minutes in each portion until golden brown. Put all the vegetables back into the pan and season with salt and pepper.
Whisk eggs and cream, season with salt and pepper. Pour evenly over the vegetables.
Bake the frittata in a preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: see manufacturer) for 10-15 minutes until golden brown. roast pumpkin seeds in a pan without fat until golden brown, take out
Cut the finished frittata into pieces. Crumble cream cheese over it and sprinkle with pumpkin seeds