Restaurants Walnut Creek KoJa Kitchen Signage Up in Walnut Creek March 8, 2017 11:30 am 1550 Olympic Blvd, Walnut Creek It’s been only a few weeks since we learned that the Korean-Japanese restaurant Koja Kitchen would be coming to downtown Walnut Creek but already the signage is up. Check out their menu here. Previous Post Update on Anti-Muslim Fliers Posted at Joaquin Moraga Intermediate School Next Post Sisters Matsumoto Playing at Lesher Center March 31st - April 29th in Walnut Creek