7–14 May 2026: DON DON DONKI Singapore Add-On Meal Upgrade Promotion – Bento and Donburi Side Dish Top-Up Deal for Affordable Dining Savings in Singapore by JR 7/May/2026 Enjoy a simple meal upgrade at DON DON DONKI Singapore from 7–14 May 2026. Add selected Japanese side dishes to any bento or donburi for just $2, available daily at all outlets from 8AM to 6PM. Read more
