In a pan, add sea salt to about 400 ml of water. Add rosemary and bring to a boil.
Add the wagashi to the water and let simmer for 4 minutes and then leave to cool.
Toast sunflower seeds for about 2 minutes and set aside.
In a pan, melt the butter, add the garlic and cook for a minute.
Salt the shrimp, add them to the pan, and stir for about 2 minutes
Squeeze the juice of half of a lemon into the pan, stir for a further minute.
Add parsley, stir, take the pan off the heat and leave the shrimp to cool.
In a bowl, add mixed salad, cucumbers and tomatoes.
Crumble wagashi over salad and then add shrimp.
Sprinkle sunflower seeds over the salad.
Serve with the yoghurt dressing or any other dressing of choice.