Mostaza Semilla Comedor de Tren

It offers an Italian menu including spaghetti, risotto, and pizza. Dishes that combine nostalgia and novelty, such as "Showa Neapolitan" and "Italian Tsukemen Pasta," are especially popular. Lunch sets come with salad, soup, appetizers, and a drink, and are both hearty and cost-effective.

The interior of the restaurant was remodeled from the inside of a Tobu 5700 series train car, and features a retro American-style interior. Railroad fixtures from that era, such as hanging straps and screen shelves, have been left in place, allowing customers to enjoy an atmosphere as if they have stepped back in time. It is also a popular spot for families and couples, with terrace seating and photo spots.

Mustard Seed Densha Shokudo is a restaurant that began operations by repurposing a decommissioned Tobu Railway 5700 series train. The restaurant combines a retro Showa-era atmosphere with authentic Italian cuisine, making it a favorite spot for locals and tourists alike.