Sea food (at least good sea food), due to its cost, is already considered a luxury food on Earth except in the parts of the planet where sea food is actually produced. So Luxury Food covers that. Rice would be a standard part of food rations I imagine, due to its ease and speed of production. So Kyushu should produce Luxury Foods and Food Rations in my opinion. But if that breaks the Luxury Food setup, it could have a rice commodity.