Iza Ramen is located in San Francisco, United States on 237 Fillmore St. Iza Ramen is rated 4.5 out of 5 in the category ramen restaurantjapanese restaurantnoodle shop in United States. ad over to Iza Ramen to experience noodles the Japanese way. There are dozens of varieties on the menu, each bowl is made fresh to order and sure to please. Iza Ramen is a great place to head for a quick lunch, where there is something for everyone. Consider the pork ramen to add a special zest to your favorite type of meat. he soup served up with the noodles at Iza Ramen is particularly tasty. You will quickly learn why the Japanese are so fond of this dish. The restaurant is popular for both lunch and dinner, and you really cannot go wrong with anything that you order.