Peel and finely chop the onion. Heat 1 tablespoon of oil in a saucepan. Fry the onion in it. Stir in tomato paste, sweat it, add tomatoes and broth. Bring to the boil, puree finely and season to taste with salt, pepper, sugar and paprika.
Simmer covered for 3-4 minutes. Clean and wash the zucchini, cut in half lengthwise and cut into slices. Peel shallots and cut into rings. Wash and drain the spinach. Rinse shrimps and pat dry.
Heat 1 tablespoon of oil in a frying pan. Fry the prawns for 2-3 minutes, season with salt and pepper and remove. Add the zucchini and shallots to the pan and fry for approx. 2 minutes while turning.
Add 5 tablespoons of water and spinach and steam until the spinach has completely collapsed. Add shrimps and vegetables to the tomato soup, reheat if necessary and serve.