We noticed that you're using an unsupported browser. The TripAdvisor website may not display properly.
We support the following browsers:
Windows: Internet Explorer, Mozilla Firefox, Google Chrome. Mac: Safari.
The latest reviews. The lowest prices. The perfect place to shop for hotels.

The Mansion

Certificate of Excellence
Map updates are paused. Zoom in to see updated info.
Reset zoom
Updating Map...
Get directions
1680 Mansion Way, O'Fallon, IL 62269-3066
+1 618-624-0629
17:00 - 22:00
Closed now
See all hours
Tue - Thu 17:00 - 21:00
Fri - Sat 17:00 - 22:00
More Info
Add Photo Write a Review

73 Reviews from our TripAdvisor Community

Traveller rating
Traveller type
Time of year
Showing 72: English reviews
Treasure Island
Level Contributor
45 reviews
35 restaurant reviews
common_n_restaurant_reviews_1bd8 10 helpful votes
Reviewed 1 week ago

We had a business meeting there and EVERYONE was disappointed with their food. For insttance, the Pasta was over done and had no flavor, the steak was not cooked to order. When we brought it to the attention of Mgmt they said we can make you a hamburger. Perhaps they had a bad night......

Thank williambU8926FH
Level Contributor
5 reviews
5 restaurant reviews
Reviewed 2 weeks ago via mobile

Not what we anticipated. Overpriced for the quality. Ordered filet mignon medium rare came out medium well. Sea bass kabobs were tasty but not worth the price. The wait staff was over worked and didn't know ingredients. We won't be going back.

Thank Sharon T
A TripAdvisor Member
Reviewed 4 weeks ago via mobile

A group of friends and I had heard great things about The Mansion. The food, service and atmosphere did not disappoint! I would highly recommend!!!

Thank A TripAdvisor Member
1 review
Reviewed 15 March 2017 via mobile

We had the chicken, salmon and steak with a variety of different sauces. Every choice was awesome and prepared perfectly. We were even taught how to drink wine as we were inexperienced. I would highly recommend the food and staff. They were very hospitable.

Thank Ritchie E
Kathy C, Owner at The Mansion, responded to this review

Hi Ritchie Thank you so much for your very kind review. The staff tries very hard to make everything exactly as you would expect it when you come here. Our front manager, Anthony, knows a lot about wine and loves to talk/teach people about it. Please stop by and learn some more any time! THanks again, Kathy More 

O'Fallon, Illinois
1 review
Reviewed 22 January 2017

Went hoping to have Beef Wellington (there signature dish) they did not have it selected the Portabello Tortellini did not have it. Wife had risotto it was not risotto it was not even a good rice pilaf. And her salmon was dry. As we were leaving another table asked for soup they had none. The duck breast that I did... More 

Thank capete00
Kathy C, Owner at The Mansion, responded to this review

I am very sorry to hear that your experience was not up to your expectations. Would you do me the favor of calling me at the restaurant or emailing me at kathy@mansionsteakhouse.com to discuss this. Thank you More 

Saint Louis, Missouri
Level Contributor
208 reviews
84 restaurant reviews
common_n_restaurant_reviews_1bd8 46 helpful votes
Reviewed 26 December 2016

This restaurant's building is a historical site and has a very close association with Abraham Lincoln. The food quality is very average but the portion is quite big.

Thank Vincent H
1 review
Reviewed 4 November 2016

I recently had my friends baby shower at the Grill at the Mansion. We had about 30 people show up. The staff and food was wonderful, everyone loved the history behind the mansion, the beautiful atmosphere, and how perfect it was for the occasion. We weren't too far from each other and yet we weren't so close together you couldn't... More 

Thank Georgie G
Kathy C, Owner at The Mansion, responded to this review

Hi, We love showers at The Mansion! Thanks for letting us be part of such a special occasion. Kathy More 

Level Contributor
52 reviews
27 restaurant reviews
common_n_restaurant_reviews_1bd8 57 helpful votes
Reviewed 24 September 2016

I am not easily impressed. My daughter became engaged, & the hunt was on to find a venue for an elegant wedding. The couple looked all over, but found no fit. Where can a historic, affordable, outdoor-indoor venue with fabulous food be found? For us it was The Grille at the Mansion! Kathy is brilliant & whatever you need, she... More 

1 Thank beekeepers77
Kathy C, Owner at The Mansion, responded to this review

Thank you for the amazing review!! You and your family were an absolute joy to work with. I was so impressed by the love and respect the bride and groom showed eachother, they are going to have an amazing life together. Thanks again for letting us be a part of such a special occasion, we appreciate it!! Kathy More 

Monroe, Michigan
Level Contributor
22 reviews
5 restaurant reviews
common_n_restaurant_reviews_1bd8 3 helpful votes
Reviewed 23 September 2016 via mobile

We had an incredibly delicious dinner!! Wine, lobster nachos, mahi mahi, sea bass, steak....everyone's meal was wonderful!! Thank you Kathy and Jerry for a wonderful meal. And any brides out there....a perfect venue for a wedding!!!

Thank Joe P
Kathy C, Owner at The Mansion, responded to this review

Hi Joe, Thank you so much for the great review! Jerry and Dave work really hard in the back to create memerable dishes. I will pass your kind words on to them. We hope to see you again soon! Kathy More 

O'Fallon, Illinois
Level Contributor
11 reviews
7 restaurant reviews
Reviewed 13 September 2016 via mobile

Great food and wine selection the lamb chop lollipops are the best! Never had a bad meal. A little pricy but worth it for a nice night out

Thank 767rayray
Kathy C, Owner at The Mansion, responded to this review

Thank you so much for your kind review. It is very much appreciated. I will be passing this along to our hard working people that work in the back of the house. With gratitude, Kathy More 

Travellers who viewed The Mansion also viewed


Been to The Mansion? Share your experiences!

Write a Review Add Photos & Videos

Is This Your TripAdvisor Listing?

Own or manage this property? Claim your listing for free to respond to reviews, update your profile and much more.

Claim Your Listing
Improve this listing

Restaurant Details

Rating summary
  • Food
    4.5 of 5 bubbles
    4.5 of 5 bubbles
  • Value
    4 of 5 bubbles
    4.5 of 5 bubbles
Average prices
USD 21 - USD 55
American, Steakhouse, Seafood
Restaurant features
Seating, Waitstaff, Parking Available, Highchairs Available, Wheelchair Accessible, Serves Alcohol, Full Bar, Wine and Beer, Accepts American Express, Accepts Mastercard, Accepts Visa, Reservations, Private Dining
Good for
Business meetings, Groups, Romantic
Open Hours
17:00 - 21:00
17:00 - 21:00
17:00 - 21:00
17:00 - 22:00
17:00 - 22:00
Location and Contact Information
  • Address: 1680 Mansion Way, O'Fallon, IL 62269-3066
  • Location: United States  >  Illinois (IL)  >  O'Fallon
  • Phone Number: +1 618-624-0629
We are seafood, steak and pasta restaurant with creative feature dishes. Jerry Conway is the co-owner and executive chef at The Mansion. He has worked at many fine dining establishments in his 25 years of being a chef, most notably he owned and operated The Cypress Room in Crystal River Florida and was an executive chef at Disney World. At Disney he was in charge of Epcot, The Magic Kingdom, The Royal Floridian and Disney's annual Wine and Cheese Festival. Chef Conway has had several recipes patented and became famous for his Sicilian Steak and Shea-Crab Soup at The Cypress Room, both of which are offered as Specials at The Mansion. The Mansion was built in 1857 by A.J. Wastfield, an independently wealthy farmer who built it for his fiance Elisie Osbourn of Lebanon. AJ's passion was politics, Abraham Lincoln was their most notable guest at their home. The Mansion was a stop on the underground railroad, the removable stairs that lead to the widows peak still remain as a reminder. At the age of 37 tragedy struck when A.J. Was fatally injured in a threshing machine accident on Nov. 15, 1866. He was survived by his wife and two young children, Walter and Julia. Elisie and her children continued to live in the Mansion for many years. The Mansion is currently owned and operated by Kathy Cox and Jerry Conway. The Mansion received a St. Clair County Landmark Award in 1963 from the St. Clair County Historical Society. Please come by and see what we have to offer, you will be glad you did! We are very proud of The Mansion and the history behind it. If you are interested in a short tour of The Mansion after your meal, please ask your server.

Questions & Answers

Here's what previous visitors have asked, with answers from representatives of The Mansion and other visitors
6 questions
Ask a question

See all questions (6)

Questions? Get answers from The Mansion 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?