Flank Steak Sandwiches

Total Time

Prep: 25 min. + marinating Grill: 25 min.


6 servings

Updated: Oct. 01, 2022
“My sister and I found this recipe 15 years ago, changed a few ingredients and made it our own," recalls Elizabeth Hiner of Chico, California. "Now, when family and friends hear we're making these sandwiches, they come running! It's a quick, healthy crowd-pleaser that goes great with summer.”


  • 1 cup chopped onion
  • 1 cup dry red wine or beef broth
  • 3/4 cup reduced-sodium soy sauce
  • 1/2 cup olive oil, divided
  • 4-1/2 teaspoons minced garlic, divided
  • 1-1/2 teaspoons ground mustard
  • 1-1/2 teaspoons ground ginger
  • 1 beef flank steak (1-1/2 pounds)
  • 1 medium sweet red pepper, cut into 1-inch strips
  • 1 medium sweet yellow pepper, cut into 1-inch strips
  • 1 medium red onion, thickly sliced
  • 1/4 teaspoon pepper
  • 6 French rolls, split


  1. In a small bowl, combine the onion, wine, soy sauce, 1/4 cup olive oil, 2-1/2 teaspoons garlic, mustard and ginger. Pour 1-3/4 cups into a shallow dish; add steak, turn to coat and cover. Pour remaining marinade into another shallow dish resealable; add the peppers and onion, turn to coat and cover. Refrigerate both for 3 hours or overnight, turning occasionally.
  2. Drain and discard marinade from steak. Lightly oil the grill rack. Grill, covered, over medium heat for 6-7 minutes on each side or until meat reaches desired doneness (for medium-rare, a thermometer should read 135°; medium, 140°; medium-well, 145°).
  3. Drain and discard marinade from vegetables. Place in a grill basket. Grill, uncovered, over medium-hot heat for 9-11 minutes or until tender, stirring frequently.
  4. In a small bowl, combine the pepper, and remaining oil and garlic; brush over cut sides of rolls. Place cut side down on grill for 2-3 minutes or until golden brown.
  5. Thinly slice steak across the grain; place on bun bottoms. Top with vegetables and bun tops. Serve immediately.

Nutrition Facts

1 sandwich: 479 calories, 23g fat (6g saturated fat), 54mg cholesterol, 933mg sodium, 36g carbohydrate (4g sugars, 2g fiber), 30g protein.