Description

These Marinated Portobello Mushroom Burgers are a flavorful and satisfying vegetarian alternative to traditional burgers. Marinated with a blend of olive oil, soy sauce, apple cider vinegar, and spices, the mushrooms soak up a wonderful smoky, tangy, and savory flavor, then grilled to tender perfection. Served on soft buns with fresh spring mix, sliced tomato, red onion, and creamy mayonnaise, they make a delicious and easy meal for any occasion.

Ingredients

Scale

Marinade

2 Tbsp olive oil
2 Tbsp soy sauce
1 Tbsp apple cider vinegar
1 tsp brown sugar
1/4 tsp oregano
1/4 tsp garlic powder
1/4 tsp onion powder
1 tsp smoked paprika
Freshly cracked pepper (about 10 cranks of a pepper mill)

Main Ingredients

2 portobello mushroom caps (about 1/2 lb. total)
2 buns

Optional Toppings

1 cup spring mix
1 tomato, sliced
1/4 red onion, sliced into rings
4 Tbsp mayonnaise

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Instructions

Prepare the Marinade. In a small bowl, combine olive oil, soy sauce, apple cider vinegar, brown sugar, oregano, garlic powder, onion powder, smoked paprika, and freshly cracked pepper. Stir well to blend all ingredients thoroughly.
Marinate the Mushrooms. Remove the stems from the portobello mushrooms. Place the mushrooms in a shallow dish with the gill sides facing up. Pour some marinade into the gills, then flip the mushrooms over and pour the remaining marinade on top. Let them marinate for 30 minutes, turning occasionally to ensure even flavor absorption.
Grill the Mushrooms. Heat a grill or grill pan over medium to medium-high heat until hot. Place the marinated mushrooms on the grill and cook for about 7 minutes on each side. Cook until the mushrooms are tender and have released most of their liquid.
Assemble the Burgers. Place each grilled portobello cap on a bun and add your preferred toppings such as mayonnaise, sliced tomato, red onion rings, and spring mix. Serve immediately while warm and juicy.

Notes

You can save the mushroom stems to chop and add to an omelette or freeze with vegetable scraps for making stock later.
For a vegan version, substitute mayonnaise with vegan mayo or hummus.
If you don’t have a grill or grill pan, you can cook the mushrooms on a stovetop skillet or bake them in the oven at 400 degrees Fahrenheit for 15-20 minutes, flipping halfway through.
Use whole wheat or gluten-free buns if needed for dietary preferences.

Nutrition

Serving Size: 1 burger
Calories: 350 kcal
Sugar: 4 g
Sodium: 600 mg
Fat: 18 g
Saturated Fat: 3 g
Unsaturated Fat: 14 g
Trans Fat: 0 g
Carbohydrates: 34 g
Fiber: 4 g
Protein: 8 g
Cholesterol: 15 mg