Sometimes you just want a delicious burger made with quality ingredients & cooked just right. That’s why The Mighty Burger exists. Our kitchen is permanently located within the Taproom at Upslope Brewing in Boulder.
So now you can do what Coloradans do best: breathe fresh air, drink craft beer, and eat a perfect Colorado raised, grass-fed beef burger. Yum yum!
It’s that good!
Based on 41 reviews, the restaurant has received a rating of 4.6 stars. Price
✔️ Dine-in ✔️ Takeout
Address:
1898 S Flatiron Ct, Boulder, CO 80301
Website: https://www.mightyburgerboulder.com/
Social Profile: 
Hours
| Saturday | 11 AM–9 PM |
| Sunday | 11 AM–8 PM |
| Monday
(Labor Day)
|
11 AM–9 PM
Hours might differ
|
| Tuesday | 11 AM–9 PM |
| Wednesday | 11 AM–9 PM |
| Thursday | 11 AM–9 PM |
| Friday | 11 AM–9 PM |
Photo Gallery
Reviews
Daniel Edmonds
Hands down one of the best burgers I have ever had, ingredients so good I did not feel the need to add sauces to enhance flavor. Pair with any of the great beer’s Upslope has and you will go home happy. Don’t miss out on the fried cheese curd’s or the bacon either.
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Rob Web
this place is simply a signboard and a bell hidden away within the Upslope Brewery. ring the bell and order your food and grab a drink outside while you wait for the ringer to go off. the burger will be perfectly cooked and seasoned, don’t worry about telling the host how you want it done. the fries are twice fried shoestring cut from real potatos and seasoned with corse salt, but you can use katsup if you want it but you will need to pick that up at the counter. the atmosphere outside is excellence, cool soul music will seranade you as you enjoy the sun or the shade outside. a great way to spend an afternoon after work or a Saturday after a morning hike.
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Samuel Palmer
AMAZING! Take it for what it’s worth, but with Five Guys being my Gold Standard, the Mighty Colorado Burger is arguably as good, if not better- certainly a better bang for the buck and equally (if not more) delicious. Seems like they’ve really paid attention to quality details, which I notice most in the bun as it didn’t seem like a stale afterthought, but was a grilled, soft pillow of perfection, holding gently the juicy grass-fed patty of palate pleasure. Anyways, my toddlers gave it a 10/10, judging from their post-meal grimy/grubby faces and fingers.
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Diana Leach
The cheese curds and sweet potato fries were great, the burgers were mediocre, and the service was terrible. We waited 15-20 minutes to order, and we were not acknowledged at all when someone would come out of the kitchen. I watched several people just leave because of this without ordering.
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Kyle and Sarah Harteker
Upslope is a great place, just not for The Mighty Colorado Burger. Extremely slow service (over an hour for fries & tots) and customer service was less than kind. Save yourself the hassle and bring your own food and enjoy great beer!
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Alex Beattie
Mark was so kind in helping us with our orders. The food came quickly and was amazing. Highly recommend the mighty burger and add green chilies.
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Dom P
Love this place. Every time I have friends come in from out of town, I like to take them to Upslope and to get a beer and a burger. If you feel like splurging, the truffle fries were absolutely worth it, cheese curds also, I would highly recommend.
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Owen McGrath
Good food… if they’re open,
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Reed Witherspoon
The Mushroom Mighty. This is the best burger that will inhabit your mouth for a small period of time. The mushrooms are sautéed to perfection. Don’t like mushroom? Doesn’t matter. Mushrooms like you. Eat. This. Burger. And your welcome.
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Jack Burkett
My favorite burger in Boulder! Always great service and amazing burgers, sides, and sauces. Marc is the best and the customer service is unmatched!
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