There are several dining halls on campus run by the University Co-Op. Each dining hall has different hours of operation and offers different items on their menu allowing you to have a variation in where and what to eat. They also offer special meals that meet the needs of students who follow a variety of dietary life styles.
Reference: UTokyo Co-op website http://www.utcoop.or.jp/foreign/index.html
Also, you can find various menus at food trucks (kitchen cars) on some campuses.
Chuo Dining Hall (halal) http://www.utcoop.or.jp/d1/index.html
Daini Dining Hall (halal/vegetarian) http://www.utcoop.or.jp/d2/index.html
Cafe Icho Metro (vegetarian) http://www.utcoop.or.jp/ft/
Agriculture and Life Sciences Cafeteria http://www.utcoop.or.jp/ad/index.html
Hongo Campus guide map: https://www.u-tokyo.ac.jp/content/400002228.pdf
Komaba I Campus
Cafeteria Wakaba, Cafeteria Icho (vegetarian)
(RSVP required for Saturdays)
|Plaza Ikoi||Weekdays...Lunch 11:30am-2pm, Dinner 5pm-8pm
|Hama (Sushi)||Weekdays...Lunch 11:30am-2:45pm, Dinner 5pm-9pm
|Food Shop & Cafe||Weekdays...Lunch 11:30am-2pm
|Mobile Catering||BAZIO (Western/Asian)