Ingredients

  • 3 tablespoons whole-grain mustard
  • 1 tablespoon extra-virgin olive oil
  • 2 teaspoons Worcestershire sauce
  • 1 1/4 to 1 1/2 pounds flank steak
  • Kosher salt and freshly ground pepper
  • 1/3 cup sour cream
  • 1 tablespoon chopped fresh chives
  • 1 16 -ounce package frozen potato-cheese pierogi
  • 1 5 -ounce package baby spinach
  • 1 tablespoon unsalted butter

Method

  • Preheat a grill to high.
  • Whisk the mustard, olive oil and Worcestershire sauce in a small bowl.
  • Season the steak with salt and pepper, then coat with half of the mustard mixture; let sit at room temperature 10 minutes.
  • Combine the sour cream and chives in another small bowl and season with salt and pepper; refrigerate until ready to use.
  • Transfer the steak to the grill and cook 5 minutes; flip, brush with half of the remaining mustard mixture and cook 5 more minutes.
  • Flip again and brush with the rest of the mustard mixture; cook 5 to 8 more minutes for medium rare.
  • Transfer to a cutting board and let rest.
  • Meanwhile, bring a large pot of water to a boil.
  • Add the pierogi and cook as the label directs.
  • Put the spinach in a colander.
  • Drain the pierogi in the colander with the spinach so the spinach wilts.
  • Return the pierogi and spinach to the pot and stir in the butter; season with salt and pepper.
  • Slice the steak against the grain; divide among plates along with the pierogi and spinach.
  • Top the pierogi with the chive sour cream.
  • Per serving: Calories 508; Fat 22 g (Saturated 10 g); Cholesterol 84 mg; Sodium 945 mg; Carbohydrate 39 g; Fiber 4 g; Protein 40 g
  • Photograph by Justin Walker