Restaurants
Eureka! Ontario
Welcome to

Eureka! Ontario

About Eureka! Ontario

Eureka! Ontario brings a fresh, elevated take on the American restaurant experience in Ontario, CA, blending the comfort of familiar favorites with the energy of a stylish, industrial-chic setting.

Located at 900 Via Piemonte Unit 101, this hip dining spot has become a go-to destination for guests who want more than just a meal—they want a place where great food, craft drinks, and a welcoming atmosphere come together seamlessly. With a strong 4.30-star rating from 491 reviews, Eureka!

Ontario has earned the trust of local diners and visitors alike by consistently delivering quality, flavor, and a memorable dining experience.

The menu is built to satisfy a wide range of tastes and occasions, from lunch and dinner to dessert, solo dining, and relaxed gatherings with friends. Guests can enjoy elevated burgers, comfort food, healthy options, and local specialties, all paired with a standout selection of beer, cocktails, coffee, alcohol, and happy-hour favorites.

Whether you are stopping in for a quick bite or settling in for a full evening out, the restaurant’s fast service, table service, and inviting bar make it easy to enjoy the moment. Outdoor seating adds another layer of appeal, while dine-in, takeaway, and delivery options provide the flexibility today’s customers value most.

Sports fans will also appreciate the lively atmosphere, making it a great place to catch a game while enjoying quality food and drinks.

Eureka! Ontario is designed with comfort and convenience in mind, offering a casual yet trendy setting that feels both polished and approachable. Accessibility is thoughtfully supported with wheelchair-accessible parking, entrance, seating, and restrooms, helping ensure a smooth experience for every guest.

Additional amenities like Wi-Fi, an on-site bar, and restroom access add to the ease of visiting, while reservations are accepted for those who like to plan ahead. Payments are simple and convenient too, with credit cards, debit cards, and NFC mobile payments accepted.

For anyone looking for a high-quality American restaurant that combines great taste, modern style, and dependable hospitality, Eureka! Ontario stands out as a destination worth returning to again and again.

★★★★☆ 4.30 rating (491 reviews)
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Guest Reviews
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Independent Reviews
Eureka! Ontario interior
Est. Local Favorite

A Taste of Tradition

Welcome to a place where great food meets warm hospitality. We believe dining is more than just a meal - it's an experience to be savored and shared.

Our kitchen is dedicated to creating dishes that bring people together, using recipes that honor tradition while embracing innovation.

  • Fresh Daily Specials
  • Private Dining Available
  • Catering Services
  • Takeout & Delivery

Guest Reviews

Hear from our valued guests

Jesse Walker

Jesse Walker

3 years ago

Wow! Such an amazing little spot. Definitely an ambience, beautifully curated atmosphere and some awesome food which ties everything together. We got the Nachos with Grilled Chicken and split the Eureka! Burger w/ fries. Everything was phenomenal, truly just excellent food. We didn't try and cocktails but it sounded like they have some fun little creations coming out of the bar. All the staff are extremely nice and it helps bring a good vibe to the restaurant. The location is connected to a hotel and there isn't much else around at the moment but parking was amble off to the side. What more can I say other than I will definitely be back soon 😁

Mychal Ochoa

Mychal Ochoa

year ago

I stopped by here for my lunch break, and it was great! The hostess was very nice, asked me how my day was going and sat me quickly. Gabby, my server was excellent and very attentive even while they were busy. If you like tea, try their Lavender Iced Tea, I thought it was delicious! And it was decorated very nice almost didn't want to drink it. 😁 I ordered the Ahi salad and it was terrific. I definitely recommend coming. I'm going to comeback again soon to try some of their other meals.

Re La

Re La

3 months ago

The deserts were good. The place always seems very busy so that must mean they are doing something right. Good solid service and good food. Bathrooms have a weird sign saying like mixed sex or something, I am not sure if it separated out once you got past the first door but I was not in the mood to find out.

Yana

Yana

year ago

Friend recommended we go to this place soon as I landed in Cali, because I was craving a fat, greasy burger. Did not disappoint! It's a laid back spot with good food and great staff. Loved the outdoor seating as well; we got to enjoy the beautiful California weather and chill vibes! It's not a fancy restaurant, but it hit the spot after a long flight. Will be back!

Brad Weber

Brad Weber

6 months ago

Came last night for the Reign game n stayed at the hotel attached. Had a blast, place was busy but the food was great, great vibe n killer food. K.d was awesome we just got a to go order before the game but she gave really good personable service which with the younger generation is hard to find. Stoked on our experience and looking forward to staying at the hotel again and eating here again, shoot over to the reign game. Super fun staycation.

Melissa B

Melissa B

year ago

Great place to have some food and drinks. The atmosphere is really cool and calm. I love the area too. It’s very modern. I love the service. The employees are very polite and welcoming. The prices are good for the quality. I enjoy this spot and definitely will be returning!

Rafael Arceo

Rafael Arceo

4 months ago

First off the hospitality is through the roof, the food is great, drinks are amazing. This is the go to spot for a date, a beer with the friend group or even if you want a nice dinner with your family. Please check this place out.

Letitia Wells

Letitia Wells

11 months ago

My daughter-in-law was in town for a couple of days and we wanted to meet up for dinner and she found Eureka. It was such a great find. We arrived around 5:15 before the crowd and ate outside which was awesome because of the cool breeze. Our server Alicia was super nice and friendly checking on us regularly. We started with the Mac and cheese balls which were delicious. My daughter in law had the wings, I had the barbecue bacon burger and truffle fries, and her mom had the tacos. Everything was delicious. I told my hubby about it and can’t wait to bring him back.

Luu iisaa

Luu iisaa

3 months ago

Can’t believe I’ve been in Ontario so many years and never checked this place out. Great food, drinks, service and atmosphere. I’ll definitely be back!

Amber Lowe

Amber Lowe

month ago

Had a positively lovely time here! Anna was my server and was wonderful from start to finish with a winning smile and great energy. Service was quick, food was tasty, and general vibe was comfortable and friendly. I had the ribeye cheesesteak and the mac 'n cheese balls and they were both fabulous! The only downside was my own fault - I got a call as I was leaving and forgot my leftovers at the table! 😭 Talk about crushing when I realized! I guess I have an excuse to go back for more at least.

Frequently Asked Questions

Common questions about Eureka! Ontario

Business Features

Highlights & Amenities

Accessibility

  • Wheelchair-accessible car park
  • Wheelchair-accessible entrance
  • Wheelchair-accessible seating
  • Wheelchair-accessible toilet

Service options

  • Outdoor seating
  • Delivery
  • Takeaway
  • Dine-in

Highlights

  • Fast service
  • Great beer selection
  • Great cocktails
  • Serves local specialty
  • Sport

Popular for

  • Lunch
  • Dinner
  • Solo dining

Offerings

  • Alcohol
  • Beer
  • Cocktails
  • Coffee
  • Comfort food
  • Happy-hour drinks
  • Happy-hour food
  • Healthy options
  • Late-night food
  • Quick bite
  • Small plates
  • Spirits
  • Wine

Dining options

  • Lunch
  • Dinner
  • Dessert
  • Seating
  • Table service

Amenities

  • Bar on site
  • Restroom
  • Wi-Fi

Atmosphere

  • Casual
  • Cozy
  • Trendy

Crowd

  • Groups
  • Tourists

Planning

  • Accepts reservations

Payments

  • Credit cards
  • Debit cards
  • NFC mobile payments

Children

  • High chairs
  • Kids' menu

Parking

  • Free parking lot
  • Free street parking
  • Plenty of parking

Pets

  • Dogs allowed outside

Visit Us

We look forward to welcoming you. Make a reservation or stop by - walk-ins welcome!

Location

900 Via Piemonte Unit 101, Ontario, CA 91764, United States

Reservations

+1 909-284-1170

Hours

Closed · Wednesday 11 AM-11:30 PM
Sunday 11 AM-11:30 PM
Monday 11 AM-11:30 PM
Tuesday 11 AM-11:30 PM
Wednesday 11 AM-11:30 PM
Thursday 11 AM-11:30 PM
Friday 11 AM-12:30 AM
Saturday 11 AM-12:30 AM
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