The vegetables usually used are green onion, shiitake mushrooms and chrysanthemum leaves. The word ‘tempura’ comes from the Portuguese ‘tempero’ and this dish dates from the mid-16th century, when Portuguese and Spanish culture was first introduced to Japan. Seafood or vegetables dipped in batter and deep-fried, tempura is served with a dipping sauce and daikon. Cheap sushi is available at supermarkets or at Rocket Japanese kaiten-zushi restaurants, where customers sit at a counter and choose what they want from a conveyor belt. Sashimi consists of thin slices of raw fish or other seafood served with spicy Japanese horseradish and shoyu while sushi consists of the same, served on vinegared rice, but also includes cooked seafood, vegetables and egg.