Vegetarian Steak with Caramelized Onions

Savor the rich, umami-packed flavors of this Vegetarian Steak with Caramelized Onions, a plant-based dish that’s as hearty as it is satisfying. Juicy Portobello mushroom caps are marinated in a savory blend of soy sauce, balsamic vinegar, and garlic, then seared to perfection for a tender, steak-like texture with a smoky char. Topped with golden, deeply caramelized onions infused with a hint of sweetness from brown sugar and a touch of thyme, this recipe is a culinary masterpiece that elevates meatless meals to gourmet status. Ready in just 45 minutes, this dish is perfect for weeknight dinners or as a show-stopping main for vegetarian guests. Serve it with roasted vegetables, mashed potatoes, or a crisp side salad for a complete and deliciously nutritious meal.

Nutriscore Rating: 76/100

Prep Time:10 mins

Cook Time:35 mins

Total Time:45 mins

Servings: 4

Ingredients

• 4 pieces Portobello mushrooms (large, stems removed)
• 3 tablespoons Soy sauce
• 2 tablespoons Balsamic vinegar
• 4 tablespoons Olive oil
• 3 cloves Garlic (minced)
• 1 tablespoon Brown sugar
• 3 medium Yellow onions (thinly sliced)
• 0.25 cup Vegetable broth
• 1 teaspoon Fresh thyme (optional)
• 0.5 teaspoon Salt
• 0.25 teaspoon Black pepper

Directions

Step 1

Clean the Portobello mushrooms by gently wiping them with a damp paper towel. Remove the stems and place the caps in a shallow dish, gill side up.

Step 2

In a small bowl, whisk together soy sauce, balsamic vinegar, 2 tablespoons of olive oil, and minced garlic. Pour the marinade over the mushrooms, ensuring they are evenly coated. Allow the mushrooms to marinate for at least 15 minutes while preparing the onions.

Step 3

Heat 2 tablespoons of olive oil in a large skillet over medium heat. Add the sliced onions and cook, stirring occasionally, for 10 minutes or until softened.

Step 4

Sprinkle the onions with brown sugar and continue cooking for another 15 minutes, stirring frequently, until they are deeply caramelized. If the onions start to stick, add a splash of vegetable broth as needed.

Step 5

Once the onions are caramelized, season them with salt, black pepper, and thyme (if using). Remove them from the skillet and set aside.

Step 6

In the same skillet, add the marinated mushrooms, cooking each side over medium heat for about 4-5 minutes until they are tender and have a slightly charred appearance.

Step 7

Plate the cooked mushrooms and top each with a generous helping of caramelized onions. Serve warm.

Nutrition Facts

Serving size	(1150.6g)

Amount per serving	% Daily Value*
Calories	898.3

Total Fat 58.7g	0%
Saturated Fat 9.3g	0%
Polyunsaturated Fat 5.5g
Cholesterol 0mg	0%
Sodium 3103.6mg	0%
Total Carbohydrate 82.9g	0%
Dietary Fiber 14.3g	0%
Total Sugars 41.9g
Protein 19.5g	0%

Vitamin D 28.0IU	0%
Calcium 172.1mg	0%
Iron 5.0mg	0%
Potassium 2501.1mg	0%

*The % Daily Value tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.

Source of Calories

Fat: 56.3%

Protein: 8.3%

Carbs: 35.4%