Diablo Burger

No matter which burger strikes your fancy , go with the medium well .... Medium at the most! These burgers are the best I've ever had and they keep me coming back (nearly 200 miles, they're THAT good)

Build your own burger from a broad selection of cheeses , spreads &veggies , or just go with one of Diablo 's creations like the Blake, topped with Hatch chile mayo , roasted green chiles & sharp cheddar . Read more

Amazing burgers and fries , some of the best I've ever had! Almost everything is gluten-free, including an optional gluten-free bun , and staff is very helpful about answering allergy questions.

Amazing burgers , but c'mon it's 2013, accept credit cards like an adult. It's sad that I can find lemonade stands and good trucks that accept credit cards, yet this restaurant is cash only .

Worth the price tag. Cooked perfectly medium-rare. Señor Smoke was killer. Rosemary fries are dope.

Try the Ziggy Stardust Burger - The make your own combo. My burger has roasted garlic (tons), grilled avocado , an over medium egg and bacon . #yum (via @Foodspotting)

Holy hell. The cheech is delicious. And spicy . Wish there was a bigger selection of beers and other alcohol , but I'll take it with locally and humanely raised meat!!

Some of the best burgers in the state ! Transcendent food, the place is the epitome of Flagstaff's charm. Almost everything is locally sourced . Warning: CASH ONLY .

Great establishment with great values when it comes to buying & eating local. Burgers are tasty, served on english muffins , & the seasoned fries are a must! I still need to try the grilled cheese . :)

Love the DB House and the Marilyn burgers . I've always listened to their suggestion of a medium rare burger and I've liked it that way.

Ergonomically sadistic and profoundly awful chairs. Tables with metal jacket that is warped and bowing. Very excellent burgers though. Just eat them elsewhere.

Those fries are heavenly. Well spiced and crispy ????

If you are in the mood for a burger , definitely come here! The choices are amazing and even the gluten free bun is awesome.

Cash Only venue and space is tight but boy is it worth it. Burgers are mind blowingly good. If you go get a burger get the Cheech !

Try the Ziggy Stardust Burger - Lunch from last week: make your own burger--I had jalapenos and bacon .

Try the Blutarsky Burger - Placed an order for 50x @GoalBusters Twist and Shot Jello shots , at @Tinderboxkitchn - Inspired to order the Blutarsky Burger .

All the burgers are amazing! Best burgers in Flagstaff OR Tucson!

Cold Mexican Cokes and solid burgers , all you need to know.

the "Cheech burger " rules.

Veggie burgers . Damn I wish we had a place like this in Boulder!

Mmmm.. grass fed cows make tasty burgers ! Be sure to bring cash and expect a line most days

Great burgers . They recommend medium well . I would agree.

Any burger ! Must try!!

No longer cash only ;) they now take plastic! Always a great time!

Delicious burgers and good selection of beers !

Very good veggie burger

Food was good, beverages were tasty. The wait for food was longer than expected. Servers were semi friendly .

Come to monte vista after for A Life of Science and a dance party sure to warm you up!!

Great burgers , AND they allow dogs on the patio if it isn't too crowded .

They now take CREDIT CARDS! :-) (even AMEX)

The Burger was very undercooked and the curry ketchup was more sweet than curry flavor. Overall not the best burger or fries place out there, but not the worst either.

The DB House burger is to die for! Best burger I've ever had, hands down.

The veggie Burger was fantastic. Add an over medium egg and green chiles

One of the best burger places I have ever been to. Don't miss it!

A little expensive , but really good!

The only diet soda they offer is root beer . Svc is a joke. Small area, order first, then wait outside. (It was cold!) $35+ for two. Had a problem with our order, they almost did not want to refund!

PS. It's cash only but easily worth the trouble. There's a Bank of America right around the corner.

It's definitely NOT a cash only place. Feel free to pay with whatever you want.

Vitamin B burger is the way to go!

CASH ONLY !!!!!! Be prepared it gets crowded and you don't want to hold up the line .

Try the Ziggy Stardust Burger - Green chile , egg , red onion

They now take credit cards !!

Good burger . Not a big fan of the bun .

Try the Coke here - it's made from sugar, not corn syrup . So tasty!

I was disappointed in the lack of seasoning in the meat (cooked medium rare). It was tasteless.

They're now open on Sunday

Very small restuarant so plan on waiting in line and eating outside.

Amazing burgers . Amazing fries . Amazing milk shakes . Best place in town .

Don't try the DB house burger . Over dose of pesto .

Good food, just a shame it's cash only !