Smash burgers don’t require fancy ingredients ... says she can tell a good smash burger just by looking at it. The 46-year-old human-resources executive grew up eating smash-style burgers.

Michael White, Ai Fiori's chef and owner, serves the White Label Burger at lunchtime. Slices of white American cheese blanket the squared-shape, eight-ounce La Frieda prime burger, which is topped ...