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Union An American Bistro, Castle Rock, CO

Union An American Bistro

4.7
4.7
1784 Reviews
$30 and under
Contemporary American
The cozy, upbeat UNION is the epitome of a friendly neighborhood restaurant, inviting locals and visitors to enjoy the modern American culinary experience. UNION offers creative, seasonal menus served in a warm and comfortable setting in the heart of downtown Castle Rock, using quality ingredients from around the block and around the world.

Online ordering: https://www.toasttab.com/union-an-american-bistro

Make a reservation

2 people

7:00 PM


Booked 32 times today

Additional information

  • Dining style

    Casual Elegant

  • Cuisines

    Contemporary American, Tapas / Small Plates, Comfort Food

  • Hours of operation

    Tue–Thu 11:30 am–9:00 pm Fri, Sat 11:30 am–10:00 pm Happy Hour Tue–Sat 2:00 pm–6:00 pm

  • Phone number

    (303) 688-8159

  • Payment options

    AMEX, Discover, MasterCard, Visa

  • Dress code

    Casual Dress

  • Executive chef

    Chris Dreiling

  • Catering

    Let us bring UNION To you. For your next Celebration, Corporate Event, Or Boxed Lunch. Whatever kind of gathering, Our Creative Team will pull it off in style. The restaurant is available for private parties up to 80 people or cocktail parties up to 100 people.

  • Private party facilities

    The restaurant is available for private parties up to 80 people or cocktail parties up to 100 people.

  • Private party contact

    Dennis Dickey : (303) 688-8159

  • Neighborhood

    Castle Rock

  • Cross street

    South Street

  • Parking details

    Parking lot & on street parking surrounding the restaurant.

  • Entertainment

    none

  • Additional

    Bar/Lounge, Beer, Cocktails, Full Bar, Gluten-free Options, Happy Hour, Indoor Fireplace, Non-Smoking, Patio/Outdoor Dining, Patio/Outdoor Dining, Takeout, Wheelchair Access, Wine

Popular dishes

What 1,784 people are saying

Overall ratings and reviews

Reviews can only be made by diners who have eaten at this restaurant

4.7
4.7 based on recent ratings
  • 4.7Food
  • 4.6Service
  • 4.4Ambience
  • 4.5Value

NoiseModerate

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Filters

  1. j

    jayman

    Kansas City

    266 reviews

    vip
    5.0

    266 reviews

    Dined 6 days ago

    overall5food5service5ambience5
    Great happy hour menu and variety of appetizers. The menu is very unusual.
  2. BH

    BecsH

    Denver

    18 reviews

    5.0

    18 reviews

    Dined on November 29, 2022

    overall5food5service5ambience5
    Wonderful evening out to celebrate my birthday. We had a delicious meal delivered by a fantastic server who was very friendly and helpful. Thank you!!
  3. M

    Moose

    Tampa

    14 reviews

    vip
    5.0

    14 reviews

    Dined on November 24, 2022

    overall5food5service5ambience5
    Sam was an amazing server and food was awesome as usual!!
  4. S

    Sandra

    Denver

    43 reviews

    vip
    4.0

    43 reviews

    Dined on November 16, 2022

    overall4food4service4ambience4
    Having lunch with a friend. Everything was good but not quite a five. We will certainly go back again
  5. OT

    OpenTable Diner

    Montana

    2 reviews

    5.0

    2 reviews

    Dined on November 15, 2022

    overall5food3service5ambience5
    The very best servers in town. Don’t know how I feel about the butternut squash ravioli. The ravioli and sauce were delish but the shrimp were odd and out of place on the dish. Otherwise the experience was great.
  6. OT

    OpenTable Diner

    Denver

    1 review

    5.0

    1 review

    Dined on November 13, 2022

    overall5food5service5ambience5
    Really great service and excellent food. Good deal all around. We’ll be back for sure
  7. TJ

    TheJLM

    Los Angeles

    8 reviews

    5.0

    8 reviews

    Dined on November 12, 2022

    overall5food5service5ambience5
    Inventive and very tasty, super service
  8. LB

    LisaB

    Denver

    2 reviews

    5.0

    2 reviews

    Dined on November 5, 2022

    overall5food5service5ambience5
    REALLY, REALLY, REALLY GOOD!! We went for a nice dinner for two. We ordered two small plates (the mussels and the mushrooms) followed by the Butternut Squash Ravioli (split in two to share). Wonderful food!! The broth that the mussels came in was wonderful in addition to the mussels. The mushrooms came in a sweet red wine sauce. The Butternut Squash Ravioli was so delicious, so creamy, savory. At the end of the meal, I ordered the PB bite (My husband does not like desserts.). Great chocolate peanut butter combination, just the right size. Thank you for an enjoyable meal.
  9. A

    Alamei

    Denver

    3 reviews

    5.0

    3 reviews

    Dined on November 5, 2022

    overall5food5service5ambience5
    Union is one of the best restaurants in Castle Rock, offering an exceptionally tasty mix of foods with great service to match.
  10. OT

    OpenTable Diner

    Denver

    4 reviews

    5.0

    4 reviews

    Dined on November 5, 2022

    overall5food5service5ambience4
    A lovely date night. The head chef Chris who we know is amazing and ensures food goes out looking beautiful.
  11. DT

    DaleT

    Denver

    3 reviews

    5.0

    3 reviews

    Dined on October 29, 2022

    overall5food5service5ambience5
    Great food and service as always! The menu has a nice varied selection.
  12. SC

    ScottC

    1 review

    4.0

    1 review

    Dined on October 23, 2022

    overall4food5service4ambience4
    It took a while to get service, otherwise, it was fabulous!
  13. LW

    LynnW

    New York Area

    3 reviews

    5.0

    3 reviews

    Dined on October 22, 2022

    overall5food5service5ambience5
    Food, drinks and service were great! My only complaint is that we ordered the pork shop and were not given a steak knife which is pretty standard in good restaurants. It was worth the struggle to cut it with a butter knife though, very tasty!
  14. S

    Sharon

    Washington DC

    73 reviews

    vip
    4.0

    73 reviews

    Dined on October 22, 2022

    overall4food4service5ambience3
    We were passing through Castle Rock and found the restaurant on the fly. Service was so very friendly. Food was really good.. .braised beef sandwich and fish tacos. So glad we found this friendly place.
  15. OT

    OpenTable Diner

    Denver

    1 review

    4.0

    1 review

    Dined on October 22, 2022

    overall4food5service4ambience4
    The food was amazing! Really enjoyed the place. We sat on the patio that was shielded with plastic to keep the chill out but was still cold.
  16. o

    oldschool

    Denver

    4 reviews

    5.0

    4 reviews

    Dined on October 9, 2022

    overall5food5service5ambience5
    This place never misses! Awesome food & staff.
  17. MW

    MattW

    Denver

    1 review

    4.0

    1 review

    Dined on October 8, 2022

    overall4food4service4ambience4
    Tenderloin salad and Thai Flatbread were AMAZING! Great service by Mark-overall, wonderful experience!
  18. D

    Dano

    Denver

    7 reviews

    5.0

    7 reviews

    Dined on October 7, 2022

    overall5food5service5ambience5
    Outstanding ambience, food and service. The Pork Chop was fantastic and the Wiener Schnitzel was cooked perfectly and great flavor.
  19. OT

    OpenTable Diner

    Denver

    1 review

    5.0

    1 review

    Dined on October 7, 2022

    overall5food5service5ambience5
    Food was on point, especially the Mac n cheese with andouille; service was great as always. Best place in Castle Rock.
  20. DP

    DennisP

    1 review

    5.0

    1 review

    Dined on October 6, 2022

    overall5food5service5ambience4
    We would come again. Thanks for your attentive service Sarah.
  21. j

    jyeh

    San Diego

    1 review

    5.0

    1 review

    Dined on October 6, 2022

    overall5food5service5ambience4
    This was my first time at The Union for Dinner. Our Reservation was for 6:45pm. We arrived at 6:40pm and were seated immediately. Our Server was Mark, he was amazing, greeted us immediately upon sitting down and provided a great experience with exceptional service. We ordered appetizers and main courses, Mark spaced them out perfectly and we had a very satisfying experience. Appetizers and all four meals were outstanding. I would highly recommend The Union if you want good food and great service.
  22. TA

    TAKL

    Denver

    14 reviews

    vip
    3.0

    14 reviews

    Dined on September 25, 2022

    overall3food2service4ambience3
    Service was great! I ordered the salmon and someone else did at our table. They both came out a little undercooked, but one was really undercooked. They replaced it. Chop was great! Something was way wrong with mac n cheese. Someone ordered a side at our table and it was great! Another at our table had it with their chicken thighs and it was baked. The flavor was like vinegar was accidentally spilled on it. Not sure what happened there? It did have a slaw on the side so possibly something spilled on it? Deviled eggs are super tasty but could use some texture IMO. Also the warm potato salad hash served with the salmon was WAY over sauced, like swimming in Mayo and barbecue sauce. We have been to Union a handful of times over the years, and just never had an experience that would send us away scratching our heads after spending over $200 for four people. Food just wasn’t great. The best thing we had was the fried broccoli and cocktails! Not sure if we have the desire to try again after this last meal being it was a special occasion and so expensive. The wait staff was attentive and helpful.
  23. MH

    MichelleH

    Denver

    7 reviews

    5.0

    7 reviews

    Dined on September 17, 2022

    overall5food5service5ambience5
    Our server was great. The food was excellent!
  24. OT

    OpenTable Diner

    San Francisco

    1 review

    5.0

    1 review

    Dined on September 11, 2022

    overall5food4service5ambience4
    Very consistent and one of my favorite go to restaurants.
  25. OT

    OpenTable Diner

    Indiana

    3 reviews

    5.0

    3 reviews

    Dined on September 10, 2022

    overall5food5service5ambience5
    Absolutely delicious. This will be a spot my husband and I go to 2-3 times month at a minimum. Service is great (shoutout to Trevor). And the food is to die for. Seriously so good. The small plates is such a good idea and the entrees are delicious too! Can’t wait for our next visit! ❤️
  26. D

    Danny

    1 review

    5.0

    1 review

    Dined on September 10, 2022

    overall5food5service5ambience5
    The cuban was a little different than I've had at other restaurants...less mustard and more delicious...
  27. B

    Boople

    Denver

    1 review

    5.0

    1 review

    Dined on September 10, 2022

    overall5food5service5ambience5
    We went right at opening and the service was great, we were celebrating so we got a lot of food and drink, peach bellini and key line martinis (fantastic), then the flatbread and curds appetizers (both very tasty), the salmon entree and coconut jerk sandwich. I am in love with the sandwich, the chicken was tender, flavors of mango were so good. Then to put us in a pain cave we got the coconut cream pie, it was so big we could only take a few bites. However, it did not make it through the night when it made it home. I had only been there once 6yrs ago, and the service is equal to even better than i remember. Just bring a small car cause the parking situation was the only downside.
  28. C

    Caccy

    Denver

    17 reviews

    4.0

    17 reviews

    Dined on September 10, 2022

    overall4food4service3ambience3
    Food is always really good. Always enjoy the artwork on display.
  29. BY

    BetsiY

    1 review

    5.0

    1 review

    Dined on September 8, 2022

    overall5food5service5ambience3
    We were celebrating a birthday and we felt appreciated as customers. Our server was great and appropriately attentive and helpful. There were excellent food choices, great happy hour options, and an array of small plates, sandwiches, salads and big plates. We got several items and they were all well prepared and delicious.
  30. M

    Mtess

    Denver

    19 reviews

    vip
    4.0

    19 reviews

    Dined on September 4, 2022

    overall4food4service3ambience4
    Steak with chimichurri, pomme frites and arugula salad was good, but I wouldn't order again. Husband had the cubano, which he liked. Son had the coconut chicken sandwich (a favorite.) They used to serve a great steak sandwich and an amazing shrimp and andouille sausage pasta in cream sauce. Both are off the menu and we hope they bring them back! Always a solid choice for dinner.
  31. BF

    BarbaraF

    1 review

    5.0

    1 review

    Dined on September 3, 2022

    overall5food5service5ambience5
    Awesome all around! Wonderful food! Great service!
  32. SE

    SkipnEileen

    Denver

    41 reviews

    vip
    3.0

    41 reviews

    Dined on September 2, 2022

    overall3food3service1ambience4
    We have dined at Union several times and last night's visit was a letdown, not up to the service and food quality that keeps us returning. We waited for more than 10 minutes before a server stopped by and asked us if we had been waited upon. He returned with water, took our drink orders, and informed us that our server was new and would be right with us. (Also said he would comp us a desert). She took our orders, but did not mention the special that our table neighbors were oohing and aahing over, the BBQ ribs. When she returned with our appetizer she told me I could still switch to the ribs if I wanted to. My mistake. They were not just blackened, but charred. On a positive note, the Greek flatbread, tuna poke, and shaved Brussel sprouts were delicious, as well as the carrot cake, ordered to go (but not comped). Everybody has to start sometime and I'm confident our server will be much better the next time we dine at Union which we most assuredly will do.
  33. B

    Bill

    Las Vegas

    23 reviews

    5.0

    23 reviews

    Dined on September 2, 2022

    overall5food5service5ambience5
    Great happy hour selections, reasonably priced. Great service and a great place to hang out.
  34. OT

    OpenTable Diner

    Denver

    7 reviews

    3.0

    7 reviews

    Dined on September 1, 2022

    overall3food3service4ambience2
    Casual dinner. Great calamari!
  35. RQ

    RobertQ

    Denver

    7 reviews

    5.0

    7 reviews

    Dined on September 1, 2022

    overall5food5service5ambience5
    Always a great dining experience! Our server Emily was super! Rockstar!
  36. OT

    OpenTable Diner

    Houston

    4 reviews

    4.0

    4 reviews

    Dined on August 30, 2022

    overall4food5service5ambience4
    Always good
  37. BG

    BernardG

    Denver

    19 reviews

    5.0

    19 reviews

    Dined on August 27, 2022

    overall5food5service5ambience5
    Fantastic dinner at an iconic place. Thank you!
  38. S

    Suefoo

    Denver

    15 reviews

    5.0

    15 reviews

    Dined on August 25, 2022

    overall5food5service5ambience5
    I met a colleague at Union for lunch. Our server was great and the food was wonderful.
  39. MP

    MarkP

    Chicago

    2 reviews

    5.0

    2 reviews

    Dined on August 25, 2022

    overall5food5service3ambience4
    Very unique menu!
  40. CN

    CooksNoMore

    Denver

    14 reviews

    3.0

    14 reviews

    Dined on August 25, 2022

    overall3food3service5ambience5
    We’ve eaten there several times. It’s usually outstanding. Their best values are on Wednesday evenings when their excellent selection of wines are 50% off. The Orin Swift Zinfandel is terrific. Favorite appetizers are the fried broccoli with siracha sauce and Wisconsin cheese curds. Unfortunately the entrees got mixed reviews on this visit. Pork Chop was excellent. Chicken thighs were very nice but the Mac & Cheese alongside seemed tasteless. The Southwest and shrimp salads also lacked seasoning and taste—a deviation from past experiences. Maybe they had a new chef or not enough staff. We’ll definitely give them another chance—on a Wednesday!

Safety precautions

  • Cleaning & sanitizing

    • Surfaces sanitized between seatings
    • Digital, disposable or sanitized menu provided
    • Common areas deep-cleaned daily
    • Sanitizer or wipes provided for customers
    • Contactless payment available
  • Screening

    • Sick staff prohibited in the workplace

FAQs

Union An American Bistro offers takeout which you can order by calling the restaurant at (303) 688-8159.

Union An American Bistro is rated 4.7 stars by 1784 OpenTable diners.

Yes, you can generally book this restaurant by choosing the date, time and party size on OpenTable.

Make a reservation

2 people

7:00 PM


Booked 32 times today
Google Map for Union An American Bistro

3 Wilcox Street, Castle Rock, CO 80104

Additional information

  • Cross street

    South Street

  • Neighborhood

    Castle Rock

  • Hours of operation

    Tue–Thu 11:30 am–9:00 pm Fri, Sat 11:30 am–10:00 pm Happy Hour Tue–Sat 2:00 pm–6:00 pm

  • Cuisines

    Contemporary American, Tapas / Small Plates, Comfort Food

  • Dining style

    Casual Elegant

  • Dress code

    Casual Dress

  • Parking details

    Parking lot & on street parking surrounding the restaurant.

  • Payment options

    AMEX, Discover, MasterCard, Visa

  • Executive chef

    Chris Dreiling

  • Entertainment

    none

  • Additional

    Bar/Lounge, Beer, Cocktails, Full Bar, Gluten-free Options, Happy Hour, Indoor Fireplace, Non-Smoking, Patio/Outdoor Dining, Patio/Outdoor Dining, Takeout, Wheelchair Access, Wine

  • Phone number

    (303) 688-8159

  • Catering

    Let us bring UNION To you. For your next Celebration, Corporate Event, Or Boxed Lunch. Whatever kind of gathering, Our Creative Team will pull it off in style. The restaurant is available for private parties up to 80 people or cocktail parties up to 100 people.

  • Private party facilities

    The restaurant is available for private parties up to 80 people or cocktail parties up to 100 people.

  • Private party contact

    Dennis Dickey : (303) 688-8159

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