Smashburger has a “localized” special burger at many locations, and Kawika went with the “Twin Cities”, which Smashburger describes as “layers of melted cheddar cheese, aged Swiss cheese and garlic grilled onions with lettuce, tomato and mayo on an onion bun.” Sounds good to me.
I’ve never been in to a Smashburger, the nearest one is an 8 hour drive. The chain employs a “design your own” concept. I’d go with a single patty, bacon, blue cheese, onion strings, and Franks Buffalo Sauce. Nice.