Wash the shrimps, except for the tail fin, peel and remove the intestines. Wash shrimps and pat dry. Wash lemongrass and pat dry. Skewer 3 prawns on each lemongrass stick and place them on a plate. Peel garlic and press it through a garlic press. Mix olive oil, garlic, 2 tablespoons Thai chili sauce, dried parsley and pepper.
Spread the shrimps with the marinade and cover and chill. In the meantime, clean the spinach, wash thoroughly several times and drain well. Clean, wash and slice the mushrooms. Peel and finely chop the onion. Heat the fat in a pot, fry the onion and mushrooms while turning. Add spinach and stock and fry covered until the spinach has collapsed. Season to taste with soy sauce and pepper. Roast sesame seeds in a large pan without fat and remove. Heat the oil in the pan and fry the prawn skewers for 4-5 minutes, turning them over. Sprinkle with salt. Arrange spinach and prawn skewers on plates.
Add spinach and stock and fry covered until the spinach has collapsed. Season to taste with soy sauce and pepper. Roast sesame seeds in a large pan without fat and remove. Heat the oil in the pan and fry the prawn skewers for 4-5 minutes, turning them over. Sprinkle with salt. Arrange spinach and prawn skewers on plates. Sprinkle with sesame seeds. Serve with the rest of the Thai chilli sauce