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Onn Vegetarian
5 Upper Boon Keng Rd, #01-01, Singapore 380005
Opening Hours
STAMPEDE Score
Moderate confidenceScore: 75 / 100
Based on 5 data points · Updated 9 days ago
Editor’s Note
Last updated 30 May 2026
Our take: Onn Vegetarian offers a range of Chinese/Asian vegetarian and vegan-friendly dishes, with a particular focus on allium-free options.
Reviewers frequently highlight the quality and flavour, with the $6 Vegetarian Char Siew Wanton Noodle being a standout for its taste and value.
Other popular dishes include the bitter gourd fish slice and Assam fish, praised for their authentic textures and balanced flavours.
While the food generally receives high marks for freshness and preparation, some find the taste to be average, suggesting inconsistency.
Be prepared for significant wait times, especially during lunch, with some customers reporting waits of 20-40 minutes.
Inconsistent service, where later orders are sometimes served first, has also been noted.
Popular dishes can sell out, and shared tables are common due to the crowded environment.
We'd recommend visiting outside of peak lunch hours to minimise wait times and ensure dish availability.
It's a reliable spot for well-cooked vegetarian options, particularly if you appreciate nostalgic hawker-style service.
Signature
Vegetarian Char Siew Wanton Noodle
Best time
Before peak lunch hours
Wait time
20-40 minutes during peak hours
Price
$$ ($6-15/person)
Score: 75 · 5 sources
What customers say
Onn Vegetarian is praised for its delicious and flavourful vegan-friendly Chinese/Asian dishes, with the vegetarian Char Siew Wanton Noodle and bitter gourd fish slice being standout items.
Customers appreciate the friendly and helpful staff, good service, and the quality of freshly cooked food, often noting its nostalgic hawker centre feel.
However, significant waiting times, sometimes up to 40 minutes, and inconsistent service where later orders are served first, are common complaints.
Popular dishes also tend to sell out later in the day, and the venue is often crowded, requiring table sharing.
Google Reviews
Serves delicious vegan-friendly Chinese/Asian food without alliums. I tried the vegetarian Char Siew Wanton Noodle ($6) and it was really flavourful and satisfying, definitely worth the $6 for the qua…
I’ve visited this coffee shop a few times to accompany a vegetarian friend for lunch. I seriously think the food is over-rated. While the ingredients are fresh, the taste is average and passable. Be…
ordered 3 dishes all very nice. $34 total with 3 brown rice. favourite was bitter gourd fish slice, the fish slice texture very good. next is Assam fish, the sourness and spicy is just nice. the sp…
Good cheap food! I didn’t have to break out my dodgy sparse Chinese to order. The man was very helpful. Delicious food! My partner said “the char siew was goood, as a former meat eater, it’s reminisce…
Coffee shop vegetarian very well cooked with good service and quality food. Attention is paid to the plating. Service is good time needed for cooking fresh veggies. Nice place to eat healthy vegetaria…
Reviews from Google
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