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Grilled Flank Steak with Sauteed Beet Greens and Creamy Horseradish Beets

This sophisticated high-protein dish makes the most of every part of the beetroot, from the earthy, nutrient-dense leaves to the sweet, roasted roots. By pairing tender grilled flank steak with a sharp, creamy horseradish dressing, you create a balanced meal that is both hearty and refreshing. The combination of peppery greens and the acidity of the lemon juice cuts through the richness of the beef perfectly.

Ideal for a midweek supper or a weekend lunch, this recipe is a brilliant way to incorporate more iron and antioxidants into your diet. The steak is marinated in rosemary and mustard to ensure maximum flavour, while the vibrant colours on the plate make it a visual treat for guests. Serve it as a stand-alone low-carb meal or with a side of crusty bread to soak up the juices.

Continue reading below

Ingredients for Grilled Flank Steak with Sauteed Beet Greens and Creamy Horseradish Beets

  • 8 medium beets with green tops

  • 2 tablespoons olive oil

  • 80ml crème fraîche or soured cream

  • 45ml prepared white horseradish

  • 2 tablespoons fresh lemon juice

  • 1 tablespoon minced shallot

  • 60ml olive oil, divided

  • 2 tablespoons Dijon mustard

  • 1 tablespoon Worcestershire sauce

  • 1 tablespoon chopped fresh rosemary

  • 1 garlic clove, minced

  • 1/2 teaspoons ground black pepper

  • 1 675g flank steak

  • Nonstick vegetable oil spray

How to make Grilled Flank Steak with Sauteed Beet Greens and Creamy Horseradish Beets

Preheat oven to 191°C. Trim green tops from beets; cut off stems and discard, reserving greens. Gently scrub 4 beets and set aside (reserve remaining beets for another use). Toss beets with 2 tablespoons oil in roasting pan. Sprinkle with salt. Cover pan with foil. Bake until beets are tender, about 50 minutes. Let beets stand covered at room temperature 20 minutes. Peel beets and cut into 1/2-inch cubes.

Whisk crème fraîche, horseradish, lemon juice, and minced shallot in medium bowl. Add beets and toss to coat. Season to taste with salt and pepper. Let stand at room temperature at least 20 minutes. DO AHEAD Can be made 2 hours ahead. Let stand at room temperature.

Whisk 2 tablespoons olive oil, Dijon mustard, Worcestershire sauce, chopped rosemary, minced garlic, and ground black pepper in 13x9x2-inch glass baking dish. Add steak; turn to coat. Cover and chill at least 1 hour and up to 2 hours.

Spray grill rack with nonstick spray. Prepare barbecue (medium-high heat). Remove steak from marinade; sprinkle with salt and pepper. Grill steak to desired doneness, about 5 minutes per side for medium-rare. Remove from grill; let stand 5 minutes.

Meanwhile, heat remaining 2 tablespoons oil in heavy large skillet over medium-high heat. Add reserved beet greens; sauté until wilted, about 3 minutes. Remove from heat, cover, and let stand 3 minutes.

Thinly slice steak crosswise. Divide steak among 6 plates; surround with sautéed beet greens. Mound horseradish beets alongside.

Disclaimer

While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.

Article history

The information on this page is peer reviewed by qualified clinicians.

  • 17 Jan 2026 | Originally published

    Authored by:

    UK recipe editors

    Peer reviewed by

    UK recipe editors
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