Hatfield’s favorite way to use up leftover steak is to put it in a simple sandwich. For this one, he slices it all thin—the steak, cheese, avocado, and kale—and finishes it off in the oven. “Tri-tip also eats great cold,” he says, “whether on a sandwich or a salad.”


  • 1/2 lb cooked tri-tip steak, cold, thinly sliced with a serrated knife
  • 2 tsp mayonnaise
  • 2 slices dark rye bread Gruyere, thinly sliced, to taste
  • 1 avocado, thinly sliced
  • 2 handfuls kale, thinly sliced
  • 2 tsp whole-grain mustard


  1. Cautiously reheat sliced steak in a microwave, using short 15- to 30-second pulses to avoid overheating, “which would completely ruin it,” says Hatfield. Spread mayonnaise on each side of bread. Pile the sliced beef on it, and add Gruyere, avocado, kale, and mustard. Place open-faced on a pan in a warm oven till cheese is melted.
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