Mustard's Last Stand

The hot dog was great and the best you’ll find around here but I got no toppings on my Chicago and just asked for ketchup and mustard and still got charged for all the toppings it was like $8 for a simple hot dog with just ketchup and mustard just kinda threw me off guard.

This is an excellent hot dog stand/restaurant. Not many places like this in Colorado. Highly recommend!

Good dogs! Had the Chicago Dogs, and they were very good.

Being from Chicago, going to Mustard's always makes me feel like I'm back at home. From grabbing a Chicago-style Hotdog or an Italian beef it never misses to hit the spot! Highly recommend if you ever want a quick, good, and amazing bite!

First timer here! Brought our little family to have a late lunch. Corn dogs and burgers. Just enough food for kids to get sleepy . The right amount for adults too. Thank you guys for being here in Boulder. Kat

I love this place! Being from Chicagoland I feel right at home here, vienna beef hotdogs are used, I think they are the best and this is the only spot in Colorado I have found them! Their Italian Beef is on par with the best I've had around the windy city, can't go wrong here! Ps the owner is a very sweet man

Cozy cute spot with good vibes & energy. Big portions. Good and fast. Funny signs. A neighborhood classic!

Best fries in town!

Love this place. A must go to if you're in Boulder. Chicago-style dogs!