Portobello Beef Tartines
Fitness & Nutrition

Portobello Beef Tartines are Heart-Healthy, Diabetic-Friendly

By on 02/22/2018

For under 250 calories you can enjoy a full-flavored steak entrée that is heart-healthy and delicious.


  • portobello mushrooms cleaned and stems and gills removed
  • Tbsp olive oil
  • small shallot chopped
  • garlic cloves minced
  • 1/4 cup balsamic vinegar
  • 1/2 lb sirloin beef
  • 1/8 tsp salt
  • Black pepper to taste
  • oz spinach washed and dried


  • Place the mushroom caps in a shallow dish. In a small bowl, combine 2 tablespoons of the oil, shallot, 3 cloves of the garlic and vinegar. Pour mixture evenly over the mushroom caps and let stand, in the refrigerator, for 1 hour or overnight.
  • Preheat grill to high. Grill the mushrooms for 10 minutes. Alternatively, preheat the oven to 400°. Line a baking sheet with foil or parchment. Roast the mushrooms for 10 minutes, flip and roast an additional 10 minutes. Cut the portobello caps in half. Set aside.
  • Season the beef with salt and black pepper to taste. Grill the beef for 2 to 3 minutes, flipping with tongs, or until desired doneness. Remove from heat and let rest.
  • In a skillet, heat the remaining 1 tablespoon oil over medium-high heat. Add the remaining 1 garlic clove and cook until fragrant, about 1 minute. Add the spinach and season with black pepper to taste. Sauté the spinach for 1 to 2 minutes, or until bright green and lightly wilted.
  • Slice the beef thin and arrange on the portobello mushroom slices. Top with spinach and serve warm.

Nutrition Info

Serves 4

Calories: 235
Fat: 17g
Saturated Fat: 4g
Cholesterol: 26mg
Sodium: 109mg
Carbohydrates: 7g
Fiber: 1g
Protein: 13g

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Date Last Reviewed: December 6, 2017

Editorial Review: Judy Capodanno, Health eCooking Editorial Director, Baldwin Publishing, Inc. Contact Editor

Dietary Review: Jane Schwartz, RD

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