Courgettes are grated and squeezed of excess juice. In a blender put courgettes, semolina, the feta cheese, green onions, parsley, dill, salt, pepper, the juice and rind of 1 lime. Grind. Whip with a little salt and 2-3 drops of lime juice snow. Gently mix with courgettes. Pour the mixture into a refractory heavily oiled form. Bake in a water bath of 25-30 minutes at 180 C. When cool turns and cut into portions. When serving pour dressing broken - the juice and rind of other lime, olive oil and salt. Decorate with cherry tomatoes and arugula.