Happy Anniversary Smashburger: Have A Cheesy Caramelized Onion Smash
Happy Anniversary, Smashburger! The popular fast-casual better burger chain is celebrating its 15th anniversary this year. Join the celebration with a Cheesy Caramelized Onion Smash, an LTO (limited time offer) burger available through August 30, 2022 (photo #1). We love a good cheeseburger, and this one is made with two kinds of cheese, Cheddar and…
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