Balsamic Flank Steak with Roasted Tomatoes

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A delicious Balsamic Flank Steak with Roasted Tomatoes that is ready in under 15 minutes with the help of the broiler. Plus it's low carb, Paleo, Clean Eating, and Whole30 friendly.

If you haven't tried flank steak yet, you are missing out. This lean, more affordable cut is full of flavor and with the right technique is tender and delicious. The key to making a tasty flank steak is marinating the steak first to make the steak more tender and then cutting it very thin against the grain. This ensures it isn't chewy and truly is essential to making flank steak a cut of beef you will love.

While you can marinate the steak in almost anything, sometimes simple is best like in this recipe. The flank steak is marinated in balsamic vinegar, olive oil, garlic, and herbs and kept in the fridge overnight. Then it is quickly cooked under the broiler (you could also grill it) until it is nicely charred on the outside and tender on the inside. Paired with a quick oven roasted tomato salad - it's one delicious dish you will make over and over again.

Looking for more recipes with flank steak? Consider trying these Citrus Marinated Steak Tacos, Grilled Thai Steak Salad, or Teriyaki Flank Steak.

The Recipe
Balsamic Flank Steak with Roasted Tomatoes

Balsamic Flank Steak with Roasted Tomatoes

PREP TIME: 2 Hours
TOTAL TIME: 2 Hours, 20 Min
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  • 1.33 lbs. lean flank steak
  • 1.5 tbsp. olive oil
  • 2 tbsp. balsamic vinegar
  • 2 U garlic cloves, minced
  • 1 tsp. dried rosemary
  • 1 tsp. dried oregano
  • 1 tsp. salt
  • 1/2 tsp. pepper
  • 4 U tomatoes, quartered
  • 1/2 tsp. garlic powder
  • 1/2 tsp. oregano
  • 1/4 cup basil
  • Cooking spray
  • Salt and pepper

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Mix together the olive oil, vinegar, garlic, rosemary, oregano, salt, and pepper. Marinate the steak in this mixture for at least 1 hour up to 24 hours.


When ready to cook, preheat the broiler. Spray the tomatoes with cooking spray and sprinkle with garlic powder, oregano, salt, and pepper.


Cover a broiler pan with foil. Remove the steak from marinade, letting excess drip off. Place the steak in the middle of the rack and cook for 4-6 minutes per side for medium. When you flip the steak, add the tomatoes to the pan as well.


To grill: Grill the steak for 4-6 minutes per side for medium. When you flip the steak, add the tomatoes directly to the grill or in a grill basket and cook until warmed and beginning to char.


Let the steak rest for five minutes before serving. Slice against the grain into thin strips. Roughly chop the tomatoes and toss with basil. Serve with the steak.

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Nutritional Facts
Serving Size: 6 oz. and 1 tomato
Amount Per Serving
Calories 306
Calories from Fat 134
% Daily Value *
Total Fat 15g
Saturated Fat 5g
Monounsaturated Fat 4g
Polyunsaturated Fat 1g
Cholesterol 104mg
Sodium 684mg
Total Carbohydrate 8g
Dietary Fiber 2g
Sugars 5g
Protein 34g

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Nutritional Values provided are estimates only and may vary based on the preparation method.

Balsamic Flank Steak with Roasted Tomatoes
† SmartPoints™ calculated by Slender Kitchen; Not endorsed by Weight Watchers International, Inc.
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