Nikumeshi Okamoto Okachimachi is a rice bowl shop in Okachimachi, Tokyo, serving sweet soy-seasoned meat and tofu over rice. Its main dish, Nikutamamameshi, is eaten by mixing a beaten egg with the rice. Orders are placed at a ticket machine at the entrance, and food comes out quickly once you sit at the U-shaped counter around the kitchen. The portion of meat is on the small side.