Roast Beef Ohno Akihabara is in Akihabara, Tokyo, and serves roast beef rice bowls and Japanese-style gyudon. Thin, soft beef comes with an egg yolk, a yogurt mayonnaise sauce, and a demiglace sauce, along with rock salt and spices. Arriving at the weekday 11 a.m. opening means eating without a wait, and a clear soup comes with the meal. The shop is small.