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American, Bar, Pub
Lunch, Dinner
Takeout, Seating, Television, Serves Alcohol, Full Bar, Table Service
Reviews (78)
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Reviewed 4 weeks ago

Checking out downtown Waukesha on the first day of spring and decided to stop here for lunch. Inside was very busy (March Madness) but the patio was open and quieter so we decided to eat there. Service was slow due to the game going on...but we were in no real rush and the weather on the patio was pleasant. Waitress was a little stressed but still friendly and as attentive as could be expected. We enjoyed a couple of tap beers along with an Alamo and Hawaiian burger with tots on the side. Tots were crispy which I liked but my wife prefers them less so. Both the burgers were cooked as ordered and the toppings were all excellent. Great place to spend a sunny afternoon.More

Date of visit: March 2021
Reviewed January 2, 2021

Mainstream is the king of burgers in southern WI. In the Milwaukee area I've had Sollie's, Sobelman's, and Oscar's, all are tremendous. Mainstream is better than all three. In Madison I've had Blue Moon, Player's and Dottie Dumpling's, Mainstream is better than these three. Simply...put, Mainstream is the best burger in southern WI. Be sure to get to Mainstream asap!More

Date of visit: January 2021
Reviewed October 15, 2020

This place is my go to always great service. Has very good food choices not just burgers. Staff is a well oiled machine very efficient and accommodating. Stiil gave the best burgers around. Outstanding wings too

Date of visit: October 2020
Reviewed July 21, 2020

The mules are worth trying too. And the patio is the perfect place to sip them. The burgers are really, really good. Hard to come up with a combination they don't offer of meat, cheese, vegetables and condiments. If you like calamari, theirs is good.

Date of visit: July 2020
Reviewed May 22, 2020 via mobile

The state of Wisconsin has opened up, so restaurants are open without restrictions so Mainstream is following the law BUT they have made no obvious precautions to prevent the spread of the disease for patrons or staff. They are still using "real" glasses, menus and...silverware instead of disposable ones. No social distance restrictions. No bartenders or wait staff wearing gloves or masks and staff are also not social distancing. I also observed a waitress touching her face, then the POS system then food baskets in quick succession. I have loved the food and friendly staff here for years but now I am hesitant to return.More

Date of visit: May 2020
Reviewed February 17, 2020

My husband and I were in town for our anniversary. Stopped for dinner one night and the burgers were awesome! I highly recommend.

Date of visit: February 2020
Reviewed January 26, 2020 via mobile

Four of us went on a Saturday afternoon. I had a Mushroom and Swiss burger. The meat was exceptional. The mushrooms were large thin sliced fresh mushrooms sauteed wonderfully. The only thing I would change is I prefer a crusty bun. But other than that...it was superb! The others all enjoyed their choices (ahi tuna, BLT, and boneless wings). We were visiting the area and saw great reviews.More

Date of visit: January 2020
Reviewed January 4, 2020

Great burgers! Will definitely go back. Clean bar pub atmosphere, friendly staff! We are always in search of a great burger and were delighted to find this little pub in Waukesha.

Date of visit: January 2020
Reviewed November 18, 2019

We have never been disappointed in the food. They always have a rotating burger, as well as the option to build your own. Their scallops and shrimp are gigantic, and their crab cakes are fantastic. They're pretty quick, even when they're busy, and the bartenders...know what they're doing. This is by far the best place to eat downtown, and one of the best burgers in the area,More

Date of visit: January 2019
Reviewed September 27, 2019 via mobile

Having moved to Oklahoma over 20 years ago I look forward to coming home and enjoying a fish fry. I just don’t expect to go to a highly rated fish fry and get frozen fish with frozen tator tots, that’s what I would expect to...get in Tulsa. It wasn’t that the fish was that bad, it’s just not what I expect in a Friday fish fry. Service was slow although the on tap beer selection was pretty good. I see that they have good burgers, probably should stick to that.More

Date of visit: September 2019
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Frequently Asked Questions about Mainstream Bar and Grill

  • Yes, Mainstream Bar and Grill offers takeout services.

  • Yes, Mainstream Bar and Grill offers delivery services.

  • Mainstream Bar and Grill is rated accordingly in the following categories by Tripadvisor travelers:
    • Food: 4.5
    • Service: 4
    • Value: 4.5
    • Atmosphere: 4