El RenoOnion smash
Sid’s Diner
A landmark counter where thin onions are pressed into beef and seared on the griddle.
Directions ↗The Local Way / An Oklahoma food story
The Smash Burger
Was Ours.
Before it became a trend, Oklahoma cooks were pressing beef and onions into a screaming-hot griddle. We called it an onion burger.
THE ORIGINAL?SMASHEL RENO • OKLAHOMA
Oklahoma invented the smash.
It just didn’t bother to name it.
The legend
In 1920s El Reno, beef was expensive and onions were cheap. Cooks pressed paper-thin onions into a smaller portion of ground beef, stretching the meat while creating something better than either ingredient could become alone.
A little necessity. A lot of flavor.
The burger hit the hot griddle and was pressed thin. The beef developed a browned crust while the onions softened, caramelized and fused into the patty. What began as an affordable local meal became one of Oklahoma’s clearest contributions to American food.
Robert’s Grill, Johnnie’s Grill and Sid’s Diner still carry the tradition within a few blocks of one another.
“Before it was smashed, it was Oklahoma.”
The Local Way
Was it really the first smash burger?
Burger history is messy, and no surviving record proves El Reno was the first place anywhere to press beef onto a griddle. The record does establish that Oklahoma’s onion burger dates to the 1920s, uses the defining smash technique, and predates today’s smash-burger boom by generations.
That is enough for us to make the case, with a little Oklahoma swagger and room for a good argument.
Only a true smash counts.
Our rule
- Fresh beef meets a hot flat-top.
- The cook presses it during cooking.
- The patty finishes thin with browned, crisp edges.
- Onions are optional. The smash is not.
Start where the story started.
Taste the evidence
El Reno sits just west of the metro and remains the essential first chapter.
El RenoOnion smash
Robert’s Grill
Tiny, historic and essential to tasting the El Reno tradition.
Directions ↗El RenoOnion smash
Johnnie’s Grill
A longtime keeper of the onion-fried burger method.
Directions ↗The tradition, closer to the city.
The Oklahoma onion smash
OKC metroOnion smash
Tucker’s Onion Burgers
Beef, a pile of onions and the classic hot-griddle press.
Directions ↗West VillageOnion smash
Sun Cattle Co.
Oklahoma beef and crisp edges in a modern homage to the original.
Directions ↗Oklahoma CityOnion smash
Nic’s Grill
Big personality, a seasoned griddle and an Oklahoma burger worth the wait.
Directions ↗Oklahoma CityOnion smash
Bunny’s Onion Burgers
An old-school counter devoted to the Oklahoma onion burger.
Directions ↗NW Oklahoma CityOnion smash
HD’s Onion Burgers
A family-run stop where onion burgers are the headliner.
Directions ↗NW Oklahoma CityOnion smash
Little Mike’s Hamburgers
A local institution specializing in Oklahoma-style onion burgers.
Directions ↗No onions required. Crispy edges are.
The modern smash
Film RowModern smash
Bar Arbolada
Thin patties, deeply browned edges and a stripped-down build.
Directions ↗Midwest CityModern smash
Danky Burgers
Hot, fast griddle-smashed patties with crisp edges.
Directions ↗OKC metroModern smash
S&B’s Burger Joint
Its signature burger is a classic smash with onions grilled until crisp.
Directions ↗This is a curated, growing Oklahoma food trail, with OKC and nearby El Reno stops visible in either city view. Norman nominations are welcome. Only a true smash belongs on the list.
Nominate a smash.
Know one we missed?
If fresh beef is pressed directly onto a hot griddle and comes off with crispy edges, we want to hear about it. Every nomination goes to Matt’s existing approval queue.