Peel the potato and beetroot and cut into wedges, then mix with 3 tablespoons of oil, salt and pepper. Place on a baking sheet and cook in the preheated oven, top / bottom heat 200 ° C / fan oven 175 ° C for approx. 20 - 25 minutes.
Halve, core and cut the pumpkin into wedges. Quarter the apples and remove the core. Mix with 2 tablespoons of oil, salt and pepper and add with the pumpkin seeds and possibly 6 stalks of marjoram and cook for another 20-25 minutes. Turn the vegetables over in between.
Cut the chives into fine rolls. Mix the sour cream with the horseradish, honey and chives, put something aside to sprinkle. Season to taste with salt and pepper. Sprinkle with the chives and serve with the pumpkin.