Wash the lemon hot, grate dry and grate the peel thinly. Peel garlic and chop finely. Wash and chop parsley. Season prepared ingredients with salt and pepper, stir in oil.
Wash the pumpkin, quarter it, remove the seeds and cut into slices with the skin. Mix pumpkin and seasoning oil well in a large bowl. Spread on a baking tray lined with baking paper. Crumble feta and mix with crème fraiche.
Spread the mixture over the pumpkin slices. Bake in the preheated oven (electric cooker: 200 °C/circulating air: 175 °C/gas: see manufacturer) for approx. 25 minutes. Serve with baguette or roast potatoes.