Some examples...
Spam Mitsubi
Similar to onigiri or omusubi, a Japanese recipe, Spam Mitsubi is a small dish that contains fried spam, rice, and nori. Spam grew in popularity post-WWII as cheap canned meat that was embraced by the Asian American community in several dishes. Spam Mitsubi is a popular snack food today and can be found almost anywhere in Hawaii, including 7/11 and restaurants.
Poke
Poke is a dish that spans far before outside contact. Initially, it was "freshly caught fish massaged with sea salt, seaweed, and crushed inamona or kukui nuts," found as a staple at feasts. Nowadays poke takes many forms both on the islands and in the mainland US. These changes occurred as new foods were introduced to the natives who continually added them to their recipes.
Malasada
Malasadas are a delicious fluffy dessert that is crispy on the outside and soft on the inside, often found with a filling. Originating in Portugal and brought to Hawaii during the 19th century when Portuguese laborers made their way over to work on sugar plantations. Today Malasadas are one of the most popular dessert dishes in Hawaii.
Hawaii BBQ
Hawaiian BBQ, much like Poki, is a native dish that has changed as people with diverse cultural backgrounds began to call Hawaii their home. Traditional Hawaii BBQ would use an "imu," or an underground oven. Today, Hawaiian BBQ's most popular form can be traced back to Korean and other Asian immigrant groups from the 19th century. Hawaiian BBQ mirrors that of Korean BBQ, with its defining features being meat, rice, sauce, fruits, and vegetables.