Place the steak in the freezer until firm ... and garlic salt. Brush the slider buns with the butter mixture. Bake until the tops of the rolls are golden and toasted, 10 to 12 minutes.

This is exactly why Anthony Bourdain despised Kobe beef sliders; converting steak into burgers forfeits the cut's unique texture. This doesn't mean that you should avoid steak burgers outright ...