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The Happy Sumo

14647 Delaware St, Unit 100, Westminster, CO 80023-9187
+1 303-920-4400
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  • Excellent36%
  • Very good34%
  • Average15%
  • Poor6%
  • Terrible9%
Travellers talk about
“edamame” (6 reviews)
“sushi” (33 reviews)
“pot stickers” (3 reviews)
Closed Now
All hours
Japanese, Sushi, Asian
₹₹ - ₹₹₹
14647 Delaware St, Unit 100, Westminster, CO 80023-9187
All Details
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Reviews (73)
Traveller rating
Traveller type
Time of year

1 - 10 of 73 reviews

Reviewed 2 weeks ago

Wife and I decided to stop in for lunch one day last week. We were in the area shopping and nothing else sounded especially appealing. First of all, this place is so darn dark that I was tempted to pull out my iPhone flashlight to...More

Thank jim6918
Reviewed 2 weeks ago

A contemporary, relaxing environment. Many cozy booths as well as other tables. Extensive, creative sushi menu, but also more than the usual number of other appetizers and entrees--the miso-glazed salmon with asparagus was wonderful. We are not sushi experts, but we were with a larger...More

Thank Alan M
Reviewed 9 September 2017

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
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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
Child-friendly, Kids
Open Hours
12:00 PM - 9:00 PM
11:30 AM - 9:00 PM
11:30 AM - 9:00 PM
11:30 AM - 9:00 PM
11:30 AM - 9:00 PM
11:30 AM - 10:30 PM
11:30 AM - 10:30 PM
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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