Mix mayonnaise and yoghurt. Peel the garlic and press it through the garlic press. Wash and clean the spring onion and cut into very fine rings. Stir the garlic and onion into the cream, add salt and pepper.
Wash, clean and drain the spinach thoroughly. Wash, peel and cut the potatoes into pieces. Wash thyme, dab dry, chop coarsely, put something aside for garnishing. rest with
Spread on a baking tray lined with baking paper. Bake in the preheated oven (electric cooker: 200 °C/ convection oven: 175 °C/ gas: level 3) for 25-30 minutes. Wash the fish and shrimps and pat dry.
Cut the fish into cubes. Put salmon and prawns on 8 skewers. Peel and finely chop the onion. Heat 1 tablespoon of oil, fry onion in it. Add the spinach, pour 100 ml of water and cover and let it collapse.
Add cream, stir in broth and let it simmer a little bit at high heat. Heat 1 tablespoon of oil. Fry the skewers on each side over medium heat for 2-3 minutes. Season with salt and pepper.
Season spinach with salt, pepper and nutmeg. Serve skewers with spinach, potatoes, sauce and lemon wedges.