Heat the oil in a frying pan, cut the turnips into cubes and fry them together with the onion until soft. Add the pea spatulas and fry for another 5 minutes
Meanwhile, boil the squid and cut them into strips, add to the vegetables in a well-heated frying pan.
Remove the salad from the heat and add the chopped tomatoes.
Mix soy sauce with garlic, grated ginger, pepper and sugar and add rice vinegar.
Season the salad and stir. Serve hot, sprinkled with herbs.