Mos Burger

Housed inside the building connected directly to Musashi-Seki Station and just steps from the ticket gates, Mos Burger offers an easy and convenient stop throughout the day, operating from 7:00 to 23:00. During the morning hours, the Morning Mos lineup features options like the Morning Vegetable Burger—layered with fresh lettuce, tomato, and aurora sauce—alongside morning hot dogs, which can be paired with drink sets for an easy breakfast.

The burger selection covers Mos Burger's signature offerings served fresh and warm, from the classic Mos Burger featuring a juicy patty draped in rich meat sauce, to the Teriyaki Burger seasoned with a fragrant soy sauce and miso glaze. Diners looking to load up on greens can turn to the Mos no Natsumi series, which wraps fillings in crisp lettuce leaves instead of bread buns, with versions such as the Natsumi Mos Yasai and Natsumi Chicken. Plant-based soy patties made from soy protein can also be substituted on select items, alongside creations like burgers served on rice-flour buns with avocado.

Side orders include the Oni-Pote combo of French fries and fried onion rings, as well as crunchy Mos Chicken seasoned in a Japanese-style marinade. Beverage choices span Kandy black tea, blended coffee, and a refreshing craft ginger ale infused with spicy ginger. With wall-facing counter seats and tables for 2, the interior provides a comfortable setup for solo dining as well as quick bites on the go.