Clean and wash spring onions and cut them into diagonal slices. Clean and quarter the mushrooms. Heat 2 tablespoons of oil in a pan. Sauté the spring onion and mushrooms for about 2 minutes. Season with salt and pepper.
Beat the eggs and cream and season with salt, pepper and nutmeg. Grease muffin tray (with 12 moulds) well and fill in mushroom-onion mixture. Pour the egg icing over it and let it set in the preheated oven (electric cooker: 200 °C/ gas: level 3) for about 15 minutes.
In the meantime clean, wash and finely slice the peppers. Wash the herbs and dab dry. Pluck and chop the leaves, cut the chives into small rolls. Mix vinegar, salt, pepper and sugar. Add the remaining oil drop by drop.
Stir in the herbs. Remove the frittata from the pan with a knife. Put it on a plate and put a tablespoon of paprika on each one. Drizzle with vinaigrette and serve. Garnish with herbs as desired.