We went for lunch and got The Boss, Off the Record Avocado and Garlic Parm Fries. They were able to substitute their house made veggie patty on any of their burgers for us. This sealed the deal and oh man... quite literally the best burgers in town. Super chill ambiance and very friendly service to boot. read more

Super pleased with our food and service. We got the undercover cheese, slinger (subbed with a black bean patty) and the off the record. Highly recommend the seasoned waffle fries. Good beer selection + fountain drinks. Also want to mention you can sub a black bean patty for any of their burgers so great for vegetarians. read more

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Food was tasty. The patty was small. We were sharing so that was pretty disappointing. The HH margarita was good and I'm picky about that. I went to get a drink refill and an employee saw me and didn't offer for me to go first. The person working the counter was friendly. So. Three stars. read more

My son, cousin and I stopped in before and Avs game. Food was fresh and menu had a ton of choices. Have been to this location a couple times now when I visit Denver for work or for fun. Burgers were great. read more

If you're looking for a great burger this is the place to go! Tucked away amongst the tall buildings in downtown Denver you'll find Illegal Burger in Writer Square on Larimer Street. (There is another location in Evergreen, CO.) You order at the counter & your food is brought out to your table. The restaurant had an industrial vibe with upbeat music playing. There were lots of interesting photos of Alcatraz Island Penitentiary on the walls as well. Counter service was great & our food was brought out quickly. Note, there was also a large patio out front with tables & umbrellas. What makes these burgers stand out is that they are made with fresh beef - no antibiotics or hormones. Never frozen. They also use locally made fresh buns & their sauces are all homemade. In addition, they serve alcoholic drinks. We had the #7 Mushroom & Swiss Burger. This was delicious... nice & juicy with sautéed mushrooms & onions & Illegal sauce. We also had the #5 Slinger Burger, this was yummy too, it came with bacon, cheddar cheese & BBQ sauce. I loved the fried onion strings on top. Fries are extra & we had the Slammer Fries with Chipotle Mayo & the Illegal Fries with Illegal sauce, both good choices. As they say, "Burgers this good gotta be Illegal"! read more

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This was 10/10 We got the illegal cream cheese, the boss, 2 slingers, truffle fries, sweet potato fries and the waffle fries! Everyone said it was probably the best burger they've ever had. Service was great. The inside is clean and tidy. We want to come back and try more. Thank you! read more

Illegal Burger - Writer Square - Slinger Sweet Potato Fries - Burgers Near Me - Denver, Colorado

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It was very imaginative to have cheese quesadillas as the bun to a burger. I was visiting Denver and had to try the green chili sauce that they put on sandwiches. I will note I got this sandwich at 8pm on a Friday. It was quite busy with only one guy out front working the cashier and the bar. I will say the idea was nice but poorly executed. The quesadillas were bland, no seasoning just cheese and tortillas, the burger was dry and the only flavor was jalapeño aioli that definitely carried the sandwiches into my belly. I was hungry so I ate the whole thing but under normal circumstances I would have decided on something else. I did get sweet potato fries that I ate in the car on the way home. They were good but a small amount for the price. The green chili sauce was nice but not anything special. This is definitely a pregame spot or in the pinch spot but nothing gourmet. read more

Illegal Burger - Writer Square - THE UNDERBOSS - Burgers Near Me - Denver, Colorado

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Excellent food, friendly staff, and top-notch service. Joshua was incredibly knowledgeable and genuinely helpful--this place is more than just a meal, it's an experience. The décor is cool, the music sets the vibe perfectly, and there's always something interesting on the TVs. Everything comes together to make it a spot we'll definitely be coming back to. read more

Illegal Burger - Writer Square - Onion rings, green chili fries and KINGPIN BIRRIA. - Burgers Near Me - Denver, Colorado

Absolutely incredible service every time I come in the food is absolutely amazing. Highly recommend the Nutella milkshake. An absolute go to burger spot. The service is incredible. read more

From the moment we walked in, the staff were super friendly and genuinely attentive, it made the whole visit feel warm and welcoming. Our food came out fast, and everything was just as we'd hoped. I started with a margarita, which was not only delicious but also a great size (no tiny cocktail glasses here!). The burger menu was a dream for anyone who loves to customise, there was a long list of add-ons to make it your own. I added an egg to my chicken club and it was the perfect touch. My boyfriend went with a classic beef burger and said it was juicy and full of flavor. We shared the truffle fries, but honestly... I kind of regret not getting my own portion they were that good. Crispy, rich, and addictive! All in all, a great spot for casual dining with quality food, speedy service, and lovely staff. We'll definitely be back! read more

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Type of place I'd go to every week. Best prices around for terrific food. Full bar which just adds to the awesomeness. Very casual spot with staff that go above and beyond for their customers. read more

Illegal Burger - Writer Square - Hotdog Special - Burgers Near Me - Denver, Colorado

This was a cool burger shop. Certainly note fancy, but the food was tasty. This place is seated on Larimer St downtown. I ordered a Slinger burger & shake here. The interior was bratty divey to be honest, but not unclean. The walls and decor were very gangster oriented - ala Al Capone era. The menu items followed suit with the theme. I ordered something called a Slinger, A burger ornamented with cheese, bacon, & fried onion crisps. The burger was piled on and decently cooked, I had onion rings with it which were also well cooked. Overall a good meal and the staff was friendly. This is the kind of place you stop by for a quick bite or go for an informal hangout over lunch. There was outdoor seating, perhaps would have elevated the experience, but it was a bit warm outside the day I was there. Defiantly worth a try if you are looking for a burger stop read more

Pretty hip atmosphere local burger restaurant with some patio seating. Very delicious interesting menu and carb free option available to have bunless lettuce wrap burger. Very good service and recommend this restaurant for interesting burger. Paid street parking nearby. read more

Illegal Burger - Writer Square - Burgers Near Me - Denver, Colorado

Looking for a great burger and fries for a reasonable price? This place is FIRE. Bonus, they also have Beer!!!

Will not be returning having been served by Jorge... Was hoping to enjoy a nice lunch out with my girlfriend who worked close by to writers square. As soon as we ordered Jorge was unhappy with the amount we tipped and for the next 20 minutes whispered cheap every time he was in ears distance. We thanked him when the food arrived to which he said "I'm sure you are". I don't know how much they pay at this place but it's not the customers problem, and I've truly never experienced anything like that before!! Like I said we will not ever be returning and can thank Jorge for that! read more

Everything is insanely good!!!!! If I was capable of eating 3 I would. The boss burger was so good. The pineapple with the jalapeños was chefs kiss. The service was really nice he was helpful with menu suggestions. And the environment was clean and inviting. Definitely going again tomorrow! read more

Illegal Burger - Writer Square - The boss burger - Burgers Near Me - Denver, Colorado

This place was amazing!! The food was cooked perfectly! 10/10. Food came out fast. However it was FREEZING in the back of the restaurant so unless you like sitting in a 60 degree ice box stay away from the seating behind the order counter! read more

Illegal Burger - Writer Square - Burgers Near Me - Denver, Colorado

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May be the best burger I have ever had. Shakes were delicious and staff friendly. I will be back as I was in burger heaven! Hope they keep this quality! read more

my husban and me went to eat with our son and we love it! those burger and fries should be definitely ilegal! 100/10 we are coming back to try the whole menu read more

I have start with a little backstory. I'm Mexican. And I mean born in Mexico and I've eaten at those questionable places where the lack of stray dogs and cheap tacos was bothersome enough to share some meat with whatever dog came by because the urban legend is that dogs are not cannibals. So I've had birria that was aged, dirty, greasy and absolutely delicious. They've married this and brought me back to those market days with an American twist. The flavors were spot on. One critic - the burger does need a little tanginess to balance out. Usually that's white onion - or maybe I just got too little slaw. It doesn't change my very good first impression. read more

Visited Denver and found this spot while looking for burgers. Holy crap, what a burger. Got the birria and their "boss" burgers with their nice golden criss cut fries. Their signature sauce is a popular must have! My boy Larry greeted me with excellent service. He noticed that I came back for a second burger so he gave me an order of free fries! THERE ARE ONLY 2 of these burger locations so I suggest all you foodies start making videos about this place! Fuckin' gooooooood! Your Yelp Foodie here recommends - @palencia_7 read more

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A bit of a weird setup. When walking in it is not apparent that it is a counter service restaurant, and you walk into the seating area/bar. Layout aside, they have an expensive menu, with a lot of options that are very creative. They also serve beer and alcoholic drinks like boozy milkshakes. The food came out pretty quick as well. The actual food itself was mediocre. I found my burger overcooked and dried out. The hot dog was drowned in sauce and the bun was stale and crunchy. On top of the subpar food it was extremely expensive, especially when considering the amount of food served. TL:DR - Great menu, but sub-par kitchen execution and high cost make illegal burger a pass read more

Illegal Burger - Writer Square - Burgers Near Me - Denver, Colorado

Food is amazing! The environment is clean and modern. The people that work here are friendly and helpful. Great experience walking in and eating lunch. read more

Illegal Burger - Writer Square - The slinger and sweet potato fries! - Burgers Near Me - Denver, Colorado

The burger was tasty, fries were nice and crispy seasoned nicely with a great dipping sauce. I had the iced tea it was ok . the service meh the guy who took our order seemed to care less if we ordered or not. Didnt say much beyond hi. Ambiance idk we ordered at a pos sat ourselves. The food came out timely. The place needed a thorough cleaning the floors were greasy (reminded me of working in a commercial kitchen) that kind of greasy. Tables were not really clean either.. The problem i really had with all this was 2 burgers 2 small fry 2 med soft drink with a 15% tip was 65.00$!! At that price this place could do more for cleanliness and customer service. Not even a thanks for coming in good by as we left. the place was not very busy at all. There are cleaner, friendlier, less expensive burger restaurants than illegal burger. really 65 bucks for 2 burgers, fries and soft drinks.... Wow read more

Heard this place is supposed to be the best burgers in Colorado. Great menu, great variations of burgers. My friend got the Underboss, a burger between 2 quesadillas with a side of green chili... Yum!!! And I got the Boss- burger with grilled pineapple and jalapeños! Very tasty! We got a side of truffle fries to split and they did not disappoint. The woman who took our order was really knowledgeable about the menu and recommended the good stuff. She was very pleasant. read more

Illegal Burger - Writer Square - The Boss with grilled pineapple, fresh jalapeño, bacon, lettuce, tomato and onion. Chef's kiss!!! - Burgers Near Me - Denver, Colorado

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Fantastic burger! Had the off the record avocado and added mushrooms. So good! Loved their sauces too!

New to Denver and coming from a Texan, great juicy burgers here. Loved the staff, everyone was very welcoming and friendly! read more

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We've come to Denver for a Convention for the last few years and one of our favorite places for meals is Illegal Burger the food is great, service is also great along with the atmosphere. They have an outdoor patio for dining or drinks. Will definitely be back!!! read more

Maybe they were having an off day, but we were not very impressed with our visit. We came on a Sunday morning right when the restaurant opened at 11am. The place is quite nice; lots of seating available inside and outside, along with a bar area. First of all, the menu is a la cart which can make your overall bill grow significantly with only a few items. My daughter had the kid's chicken nuggets. The nuggets were very bland and were in dire need of seasoning. My mushroom Swiss burger was decent, but I could hardly taste the toppings and my bun crumbled apart as I ate it- almost like a stale bun would after it's been toasted. My sweet potato fries were burnt, but still edible. We did enjoyed the dipping sauces that came with our fries. The maple bacon sauce that came with the sweet potato fries was delicious. Looks there are other delicious options on the menu. I wouldn't mind coming back to try something else. read more

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Ronny was dope! Made the whole time we were there feel very friendly and comfortable. My kind of people! And amazing food!!! Definitely stop in if you get a chance. read more

Everything was amazing the burger fries and you have to try all of there different sauces read more

Illegal Burger - Writer Square - Burgers Near Me - Denver, Colorado

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Stopped by this place because of the good smells! The burgers on the menu were very creative and we ended up choosing the boss and the illegal cream cheese burger one with onion rings, the other with green chili cheese fries. Burgers were very good with all the toppings but I feel like the meat itself needs a little more seasoning and flavor. The green chili cheese fries honestly didn't look too appetizing but they tasted great! There was only one employee I charge of the front but he was very friendly when taking our order and giving suggestions! read more

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We only had a couple of hours before our flight home and were in the mood for a burger. We just happen to find Illegal Burger downtown. The burger was tasty and cooked perfectly, the truffle fries were also delicious. My only complaint is that it was very pricey for a burger and fries, I know inflation is bad but damn. Other than that, it was a pleasant experience. read more

Illegal Burger - Writer Square - Burgers Near Me - Denver, Colorado

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I spent a minute or two after walking in just waiting for someone to come to the counter where you order and saying "hello?" to announce my presence. When the guy finally came out he took my order, but kind of seemed to expect me to have it ready as soon as he got there. Since the menu is unusual it was going to take me a second. I ordered the mushroom and Swiss burger. It does look like the pic on their Yelp page, but that doesn't tell you what it tastes like. I took two bites and spat the second bit out. Might have overreacted, but it didn't taste right to me. I tried the fries (not good) and dipped them in the sort of funky-tasting chipotle mayo(?) I guess(?). Also might have been affected by the fact that the guy ended up burping quite audibly several times as he walked around the restaurant. That gave me the heebie jeebies about the food prep. I am giving an extra star because I didn't ask for money back so not completely fair to them. I know this is a negative review, but it was a pretty negative experience. I ended up throwing the whole thing away and walking to Sam's diner where I had a very good burger and fries. read more

A must visit! Upon entering we were overwhelmed by so many good choices of burgers! An awesome menu with a wide array of mouthwatering options. We were greeted by Larry who became our spiritual guide in ordering a burger. Larry did not lead us astray in choosing the Kingpin Birria and the Street Burger. Both were delicious, the Birria is especially phenomenal. There is a reason it has won awards. Larry was attentive and friendly! We trust him with our life! We will be back read more

Illegal Burger - Writer Square - Burgers Near Me - Denver, Colorado

Excellent burger!!!! The bun was brioche with black sesame seeds. I also had a regular side of fries. My mom had the barria French fries with a delicious burger with a sweet potato bun! Great flavors and I'm impressed on these Christmas Eve! Service was great very attentive. read more

This place may not catch your eye at first, but don't let the appearance deceive you. I guess if you're in the mood for a no-frills, quick, burger fix, the spot got you covered. Very simple not a first choice, but will do when you're looking for, a very casual small spot for a burger read more

The food was decent, nothing I haven't had before. Loved the root beer float. The service was satisfactory, with a pretty long wait time about 20 minutes with no line. read more

Illegal Burger - Writer Square - Mushroom Swiss BACON BANDIT Illegal Fries Truffle Fries Root Beer Float - Burgers Near Me - Denver, Colorado

My teen son and I were checking out the CU Denver campus and Illegal Burger is very close to his class. We decided to try it, gotta day we are so glad we did! I had the cream cheese burger, so delicious! My son had the Boss, he loved it but couldn't finish it since it's so big! The meat was so flavorful, I felt like I didn't need any toppings since the beef it's self was so tasty. The people who work there are so friendly, Made us feel so comfortable! I even got a high five for my order! If you are near Larimer square and don't feel like a fancy restaurant try this burger place. You won't be disappointed. read more

Illegal Burger - Writer Square - Illegal Cream Cheese Burger - Burgers Near Me - Denver, Colorado

DELICIOUS burger holy cow. I just got off a plane from Los Angeles and was exploring the city when I stumbled upon this place. such a quality burger I am so satisfied! read more