Imagine your favorite sushi roll. Now imagine it deconstructed and served in a bowl: sticky rice topped with marinated raw fish, avocado, scallion, sesame seeds and toasted seaweed. Well, thatâs one combination! Poke (POH-key) is a healthy Hawaiian staple of marinated, cut-up raw fish, often made with tuna. Build-your-own poke bowl spots are popping up all over the country, where you can pair your choice of delicate fish with rice and as many toppings as a burrito bar.