Coarsely crush pepper in a mortar. Dab fillet dry and cut into 4 medallions. Rub with pepper, place in an ovenproof dish and set aside for about 1 hour.
Preheat oven (electric cooker: 80 °C/circulating air: not suitable/gas: see manufacturer). Heat lard in a pot. Pour it over medallions. Cook in the oven for approx. 1 1⁄2 hours.
Meanwhile, for the risotto, peel and finely dice the onion and garlic. Peel the beetroot and cut into small cubes. Heat 1 tablespoon of oil in a pot. Sauté onion and garlic in it. Add rice and stir-fry for 1-2 minutes until it crackles.
Stir in the beetroots. Season with salt and pepper. Add wine and simmer until all the liquid is absorbed. Dissolve stock in 1⁄2 l hot water. Pour so much hot stock into the risotto until the rice is covered.
Bring to the boil and simmer over low heat for a total of 30-35 minutes. Add broth again and again as soon as the rice has absorbed the liquid.
Wash parsley and shake dry, chop leaves coarsely. Pumpkin wash, clean, cut in half, remove seeds with a spoon and dice finely together with the skin. Grate parmesan. Heat 1 tablespoon of oil in a pan.
Fry the pumpkin for 3-4 minutes while turning. Season with salt and pepper, take out and keep warm. Heat 2 tablespoons of oil in the frying fat. Fry medallions in it on each side at high heat for 1-2 minutes.
Season with salt. Take out, wrap in aluminium foil and let it rest for 3-4 minutes.
Fold butter and parmesan into the risotto. Season to taste with salt and pepper. Arrange medallions with risotto and pumpkin croutons. Sprinkle with parsley.