This map shows a list of different food options if you need a quick bite.
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If you are into good cuisine that are priced right, here is an up-to-date blog on food near TMU (in Mandarin, but understandable after google translate): https://xnfood.com.tw/tmu-food-lazy-package/
For more information, you can visit the TMU International Office website: https://oge.tmu.edu.tw/