Photo of Grilled Flank Steak with Onions by WW

Grilled Flank Steak with Onions

Points® value
Total Time
1 hr 5 min
10 min
25 min
A simple garlic-oregano marinade adds wonderful flavour to flank steak. We serve it with grilled red onion but asparagus and whole scallions would be just as tasty.


Red wine vinegar

3 tbsp(s)

Olive oil

1 tbsp(s)

Dried oregano

2 tsp(s)

Minced garlic

2 tsp(s)

Black pepper

¼ tsp(s), freshly ground

Uncooked lean flank steak

1½ pound(s)

Table salt

¾ tsp(s), divided

Red onion

1 large, cut into 1/4-inch-thick slices

Cooking spray

2 spray(s)


  1. In a shallow glass dish (or sealable food storage bag), mix vinegar, oil, oregano, garlic and pepper. Add steak; turn to coat, making sure steak is coated with vinegar mixture. Cover dish (or seal bag); marinate in refrigerator for at least 30 minutes.
  2. Heat outdoor grill.
  3. Remove steak from marinade; discard marinade. Sprinkle steak with 1/2 teaspoon salt. Coat onions with cooking spray; sprinkle with remaining 1/4 teaspoon salt.
  4. Grill steak, turning once, until medium rare, about 15 minutes, or longer for desired degree of doneness. Let steak rest for 10 minutes.
  5. While steak is resting, grill onions, turning occasionally, until lightly charred and tender, about 7 to 9 minutes.
  6. To serve, thinly slice steak against the grain and place on a serving platter; scatter onions over top. Yields about 3 1/2 ounces steak and 1/3 cup onions per serving.