For the best plate meals in Waikiki, you actually have to head to Kapahulu. Situated a short distance up the road from Diamond Head, Rainbow Drive-In serves up ono grindz, which visitors to Hawai'i quickly learn means delicious food. Seiju Ifuku, the founder of Rainbow Drive-In, learned to cook while serving in the Army during World War II. He and his wife Ayako opened up Rainbow Drive-In in 1961. For 50 years, their philosophy has been to offer generous portions of hearty, simple food to the working person. Everyone always comes back for da ono grindz!