Defrost the prawns. Clean the salad, wash and shake dry. Clean, wash and chop the tomatoes. Peel and finely dice onion and garlic. Clean, wash and cut aubergine into 12 thicker slices.
Heat 1 tablespoon of olive oil in a frying pan. Sauté the onion and garlic. Add the tomatoes and simmer at low heat for about 10 minutes. Season to taste with salt and pepper. Wash the rosemary, shake dry, remove the needles from the twig and chop finely.
Add rosemary and capers to the tomatoes.
Wash the shrimps and pat them dry. Heat 1 tablespoon of oil in a frying pan. Fry the prawns for 3-4 minutes while turning. Season with salt and pepper. Grill aubergine slices in a grill pan in portions on each side for about 3 minutes.
Arrange 3 aubergine slices on 4 plates. Fold the prawns into the tomatoes and spread on the eggplants. Garnish with salad.