Santouka is a Japanese-based chain with locations in Southern California, Chicago, New Jersey and San Jose. But don’t let the restaurant’s chain status keep you away. It is just spreading the love. The restaurant occupies a space in Mitsuwa Marketplace, a Japanese supermarket that is a culinary destination in its own right. If ever there were a contest for “great food in an unlikely setting,” this place would be sure to win. I’ll take great food over atmosphere any day.