Clean, wash and quarter the savoy cabbage and remove the stalk. Cut the cabbage into strips about 1 cm wide. Bring 2 l water to the boil in a large pot, stir in the stock. Add the noodles and cook according to the instructions on the packet. Add the savoy cabbage and cook for the last approx. 5 minutes. Drain the noodles and cabbage and let them drain, catching the broth.
Preheat oven (electric cooker: 220 °C/circulating air: 200 °C/gas: see manufacturer). Approx. 1⁄2 Measure out l stock, put it back into the pot and boil it down to half at high heat. Spread a thin layer of oil on a baking tray. Spread the savoy cabbage noodles on top or in four small greased casseroles. Season with salt and pepper. Mix butter with a little salt and pepper and 1 tablespoon of paprika. Knead in breadcrumbs. Sprinkle the paprika crumbs evenly over the noodles. Bake in a hot oven for about 15 minutes.
Mix the crème fraîche and the boiled stock. Season to taste with salt, pepper and lemon juice. While baking, drizzle over the pasta several times.