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14647 Delaware St, Unit 100, Westminster, CO 80023-9187
303-920-4400
Website
Today
11:30 am - 10:30 pm
Open now
See all hours
Hours:
Sun 12:00 pm - 9:00 pm
Mon - Thu 11:30 am - 9:00 pm
Fri - Sat 11:30 am - 10:30 pm

TripAdvisor Reviewer Highlights

Read all 35 reviews
Visitor rating
  • 12
    Excellent
  • 15
    Very good
  • 5
    Average
  • 0
    Poor
  • 3
    Terrible
Rating summary
  • Food
    4.5 of 5 stars
    Service
    4 of 5 stars
  • Value
    4 of 5 stars
    Atmosphere
    4.5 of 5 stars
Most recent review
Great upbeat atmosphere, delicious sushi rolls

Love this place with friends, great service EVERY time and the sushi rolls are consistently good. The menu does not often change so its a nice place to find some favorites. Personally, the turtle shells, rainbow crunch roll or the baja roll. The white lotus from the bar is a perfect... read more

4 of 5 starsReviewed February 18, 2015
JustCBE
,
Boulder, Colorado
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35 Reviews from our TripAdvisor Community

Date | Rating
  • English first
  • Any
English first
Boulder, Colorado
Senior Contributor
28 reviews 28 reviews
12 restaurant reviews
8 helpful votes 8 helpful votes
4 of 5 stars Reviewed February 18, 2015

Love this place with friends, great service EVERY time and the sushi rolls are consistently good. The menu does not often change so its a nice place to find some favorites. Personally, the turtle shells, rainbow crunch roll or the baja roll. The white lotus from the bar is a perfect complement. Music is always good and the tables accommodate... More 

Was this review helpful? Yes
Houston
Reviewer
4 reviews 4 reviews
1 helpful vote 1 helpful vote
3 of 5 stars Reviewed December 2, 2014

Like the title says... The portions and flavor were good, and the atmosphere was nice. We were there for lunch, and I think it's more of a dinner place. It was overpriced. And the waitress didn't have a clue about anything on the menu. When we had questions about a dish, she would just take our menu, and read the... More 

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Irvine
Senior Contributor
35 reviews 35 reviews
27 restaurant reviews
14 helpful votes 14 helpful votes
3 of 5 stars Reviewed November 29, 2014

I am not a sushi fan and didn't have that here. I had one of the.combo plates with the soup, salad, tempura shrimp and teriyaki chicken and steam rice and avocado roll. Let's start with the salad...no good, the dressing was salty and the leaves where dirty, the soup broth wasn't bad, the rice was good, the chicken could of... More 

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2 reviews
1 helpful vote 1 helpful vote
1 of 5 stars Reviewed November 2, 2014

If you enjoy deep fried, tasteless supermarket like sushi this is the place for you. The rolls were dried and had no flavor. The rice was old, dried, and over cooked. everything was terrible, not to mentioned the fish was died in food coloring to look new. Do not waste your money and time. By the way there is a... More 

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Nebraska
Top Contributor
92 reviews 92 reviews
74 restaurant reviews
51 helpful votes 51 helpful votes
5 of 5 stars Reviewed September 25, 2014

We visited with a friend for a birthday lunch. We started with lightly fried vegetable pot stickers-very good. We also had a Diva Roll (freshwater eel), a Spider Roll, Hamaki Sashimi (awesome). Enjoyed it all. Relaxing and pleasing atmosphere. It was my birthday (thus the DIVA roll). We also enjoyed a free chocolate sundae to celebrate my birthday, which we... More 

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Firestone, Colorado, United States
Contributor
14 reviews 14 reviews
5 restaurant reviews
4 helpful votes 4 helpful votes
4 of 5 stars Reviewed September 12, 2014

My whole family loves it here. I have had romantic dinners with my husband here and lunch with the kids. All were great. The food is delicious. Weekday lunch specials are very reasonable. My kids love their children's menu here which are a great value and are something different than the typical kids menu. Great place that we visit often.

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Broomfield, Colorado
Senior Contributor
33 reviews 33 reviews
27 restaurant reviews
9 helpful votes 9 helpful votes
4 of 5 stars Reviewed September 8, 2014

My daughter and I love The Happy Sumo. The food is fresh and delicious. Our favorite roll is the Surf & Turf along with a couple of Unagi Nigiri Sushi on the side. YUM! I also took sushi from The Happy Sumo to book club, it was a hit. One issue I we have are the flowers at the front... More 

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denver
Senior Reviewer
7 reviews 7 reviews
5 restaurant reviews
6 helpful votes 6 helpful votes
5 of 5 stars Reviewed August 28, 2014

We LOVE Happy Sumo! This is one of my all time favorite restaurants. We live nearby, so have been there several times... some date nights, some family dinners (two kiddos under 7) and some larger dinners with friends. It's great for them all. They do not take reservations, so it's a bit harder with large groups unless you go mid... More 

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Dallas
Senior Contributor
33 reviews 33 reviews
27 restaurant reviews
6 helpful votes 6 helpful votes
4 of 5 stars Reviewed July 23, 2014

Met an old business associate for lunch. About 25 minutes outside of downtown Denver. Large menu for sushi but also had selections of "cooked" food... Split appetizers, around 4 and it was more than enough for two people. Not too thrilled with the lettuce wraps, but loved the edamame and potstickers. Didn't drink alcohol but they had a full bar... More 

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Denver, Colorado
Top Contributor
133 reviews 133 reviews
81 restaurant reviews
48 helpful votes 48 helpful votes
4 of 5 stars Reviewed March 24, 2014

We had tried to go here on previously but it gets crowded on weekends. Walked right in a Sunday night though. They have a huge range of creative sushi rolls, service was prompt and pleasant. Everything we tried was tasty, the place is nicely decorated and a welcome dab of hipness in suburban north Denver.

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Restaurant Details

Location and Contact Information

  • Address: 14647 Delaware St, Unit 100, Westminster, CO 80023-9187
  • Location: United States  >  Colorado (CO)  >  Westminster
  • Phone Number: 303-920-4400

Price and Cuisine

  • Cuisine: Sushi, Japanese
Open Hours
Sunday
12:00 pm - 9:00 pm
Monday
11:30 am - 9:00 pm
Tuesday
11:30 am - 9:00 pm
Wednesday
11:30 am - 9:00 pm
Thursday
11:30 am - 9:00 pm
Friday
11:30 am - 10:30 pm
Saturday
11:30 am - 10:30 pm

Questions & Answers

Questions? Get answers from The Happy Sumo staff and past visitors.
Posting guidelines
Typical questions asked:
  • Do you have gluten-free options?
  • Is there a dress code?
  • Do you allow dogs on the outdoor patio?