Wash the pork tenderloin and pat dry. Fry well all around in hot oil. Season with salt and pepper. Fry for about 15 minutes at medium heat until done. Meanwhile cut the pumpkin into slices, remove seeds and peel.
Cut the fruit flesh into small cubes. Wash and chop the thyme and laurel. Peel and finely chop the onion. Melt the fat, sauté the onion and pumpkin in it, add the stock. Season with salt, chilli and herbs, cover and simmer for about 7 minutes.
Cut the fillet into slices. Mix the roast with crème fraîche, honey and mustard. Divide pumpkin, sauce and fillets into portion moulds. Peel, wash and coarsely grate the potatoes, salt them a little and immediately spread them on the fillet pieces.
Bake in the preheated oven (electric cooker: 225 °C/ convection oven: 200 °C/ gas: level 4) for approx. 10 minutes. Serve garnished with laurel and chilli.