Santouka Ramen-Costa Mesa, CA. Santouka is located inside the Mitsuwa Marketplace. It has been serving delicious ramen since opening it’s first 9 seat restaurant in 1988 in Hokkaido, Japan. Their restaurant opened serving only one dish their Shio (Salt) Ramen which became famous in Japan. They still serve this dish today Shio Ramen with Toroniku Char-Siu Pork. This is a must try. I also tried their Cold Ramen which was delicious on a hot summer day. It was very refreshing and great new flavor. Love, Peace and Toroniku Char-Siu Pork Grease!