I'm heading down to El Reno for lunch. To get the OG onion burger, Robert's. It's been there since 1926, it's a tiny place like 15 seats. They also have great chili dogs and slaw.
It is legitimately one of the best burgers in the world and it's so simple.
EDIT: The better half said she wants to join for lunch, so we are going to go to Bar Arbolada for burgers. Alton Brown called them the best burgers in the country.
https://www.mashed.com/654738/alton-...-cheeseburger/