Preheat the oven to 170 ° C fan oven. Roll out the puff pastry sheets and line the molds with them. Prick several times with a fork.
Sauté thawed spinach together with the onion cubes in a little oil, season with salt, pepper and nutmeg and squeeze out in a sieve. Distribute the spinach and tomato halves evenly on the molds.
Whisk the Gorgonzola, sour cream, cream and eggs with a fork, season with salt and pepper. Pour evenly onto the molds, sprinkle with pine nuts and bake in the oven for about 35 minutes until golden brown.