Ingredients

  • 2 garlic cloves
  • Kosher salt
  • 1 tablespoon minced rosemary
  • 1 1/2 teaspoons paprika
  • 2 tablespoons extra-virgin olive oil
  • 1 flank steak
  • Freshly ground pepper
  • 4 1/2-inch-thick slices of whole-grain bread
  • 2 teaspoons mayonnaise
  • 2 teaspoons Dijon mustard
  • 8 slices of Flash-Pickled Green Tomatoes
  • 1 cup packed baby arugula

Method

  • On a work surface, sprinkle the minced garlic with salt and, using the flat side of a knife, mash the garlic to a smooth paste. In a small bowl, whisk the garlic paste with the rosemary, paprika and olive oil. Rub the marinade all over the steak and let stand at room temperature for 2 hours or refrigerate for up to 2 days.
  • Heat a grill pan. Season the flank steak with salt and pepper and grill over moderately high heat, turning once, until medium-rare, about 7 minutes. Transfer the steak to a board and let rest for 5 minutes. Thinly slice the steak across the grain.
  • Grill the bread until crisp and golden, about 2 minutes per side. Spread each slice with 1/2 teaspoon each of the mayonnaise and mustard. Arrange the steak on the bread and top with the pickled green tomatoes.
  • In a medium bowl, toss the arugula with the tomato pickling liquid and season with salt and pepper. Mound the arugula on the sandwiches and serve.