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The Happy Sumo

14647 Delaware St, Unit 100, Westminster, CO 80023-9187
+1 303-920-4400
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  • Excellent33%
  • Very good38%
  • Average15%
  • Poor5%
  • Terrible9%
Travellers talk about
“edamame” (6 reviews)
“sushi rolls” (6 reviews)
“pot stickers” (4 reviews)
Open Now
11:30 - 21:00All hours
Japanese, Sushi, Asian
$$ - $$$
14647 Delaware St, Unit 100, Westminster, CO 80023-9187
All Details
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Reviews (71)
Traveller rating
Traveller type
Time of year

1 - 10 of 71 reviews

Reviewed 1 week ago

It was my first time going to this restaurant and it did not disappoint. The ambiance was fantastic and trendy. The restaurant was very clean. The wait staff was efficient and friendly. The rolls were unique and all of them were delicious. The drinks were...More

Thank Sheila R
Reviewed 21 June 2017

I can' t say enough good things about this place, but in one word. E X C E L L E N T !! This place you can let your hair down and try new and exciting things.

Thank Peter P
Reviewed 9 March 2017

If you're looking for for some pretty funky (not necessarily good) sushi rolls, look no further. Not impressed with the food or the drinks. The service was good. We had edamame, seaweed salad and a couple of rolls. All of it was mediocre at best....More

Thank Mike P
Reviewed 1 March 2017

I don't eat sushi, so my review is focused on the noodle bowl and teriyaki chicken we had. I found the entrees to be very good. Mild and approachable flavors. Veggie dumpling appetizer was a little weak as the flavors were too muted. Really enjoyed...More

Thank ProfessorX69
Reviewed 24 February 2017 via mobile

We had a birthday celebration with 8 people. The service was great. Everyone talky enjoyed their food. The food was served very efficiently with minimal delays. Reorders came quickly.

Thank Tim B
Reviewed 21 January 2017 via mobile

The restaurant is very nice and the staff was very friendly and professional. The spider roll was very chewy. The dumplings from the sumo sampler appetizer had a very weird taste. The caterpillar roll was very mediocre. Both my wife and I though that the...More

Thank Stephane B
Reviewed 7 January 2017 via mobile

We ordered our food to go to be ready in 45 minutes and we didn't receive it till 1 hour and 15 minutes later. While we waited in restaurant 30 minutes, the hostess received a pizza and was scarfing it down pizza in front of...More

Thank Bethyd542
Reviewed 23 December 2016

We have been customers since they opened. We have always had pretty good to excellent service. The sushi is always predictably and nicely presented. Taste and flavor always great. On December 20, 2016 we invited our four teenage granddaughters to lunch at a Denver area...More

Thank etschaefer
Reviewed 5 November 2016

Interesting place. Service has been good on our several visits, but the cleanliness is scary, especially since they are serving raw fish. The dirt: Sushi counter was not clean, the foot support on the Sushi Bar Stool was so greasy that it was not possible...More

Thank Npv4fun
Reviewed 11 September 2016

This is an outstanding restaurant. the Sushi and Sashimi are always fresh excellent. The menu also has some wonderful entrées. Great place for those parties that have sushi eaters and non sushi eaters. My favorite appetizer is the Sashimi plates, and favorite entre is the...More

Thank vascsurg2016
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Questions & Answers
Dawn D
5 November 2015|
Response from 05MK2000 | Reviewed this property |
I honestly don't know.
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Restaurant Details

Rating summary
  • Food
  • Value
Lunch, Dinner
Restaurant features
Seating, Waitstaff, Wheelchair Accessible, Serves Alcohol, Takeout, Reservations, Television
Good for
Kids, Child-friendly
Open Hours
12:00 - 21:00
11:30 - 21:00
11:30 - 21:00
11:30 - 21:00
11:30 - 21:00
11:30 - 22:30
11:30 - 22:30
Location and Contact Information
  • Address: 14647 Delaware St, Unit 100, Westminster, CO 80023-9187
  • Location: United States  >  Colorado (CO)  >  Westminster
  • Phone Number: +1 303-920-4400
  • E-mail
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