Jane & Michael Stern

"Nic’s rendition is a gorgeous mess: a raggedy half-pound mass of ground beef, fatty enough to glisten and ooze juice, its edges slightly crisped from the flattop grill, the whole thing smothered in onions, some of which are translucent and limp, others caramelized amber, a few sizzled to delectable crunchiness. The package (which should include pickle chips and may also be festooned with a couple of slabs of bright orange cheese, lettuce, and tomato) is barely contained in a bun, the top of which ... Read more

Business Insider India

"The Best Burger In Every State: Oklahoma - Nic's Grill may be a tiny Oklahoma City shack, but tons of people come to try its delicious onion burgers, which are served with heaps of fries."

AAA International Relations

"The aroma of grilled onions is sensed before you enter this small restaurant. Burgers are prepared on a flat grill and require a hearty appetite and plenty of napkins. The friendly owner mans the flat top and will happily be your "burger guide," suggesting his delicious grilled onions or jalapeños to those looking for the best burger around."

Kacy Kish

"Where can you get your onion burger fix? Try Nic’s Grill in OKC (but be prepared to stand in line). It's on our must-try list!"

Meg Cathey

"Onion burgers started as a means of survival during the Great Depression and evolved into a food staple for Oklahomans and surrounding areas. Nic’s Grill is a 15-seat restaurant full of flavor—serving up delicious onion burgers daily. Many locals claim Nic’s Grill as home to the best onion burger in OKC."

Diners, Drive-Ins and Dives Locations

"We've had many burgers in our travels, but this one really hits it out of the park with their Onion Burger that is unlike anything you've tried before. All the burgers are created in-house with always fresh and hand-packed ground beef. Nothing is frozen here... so you only get the best quality, flavors and juiciness possible."