Vegetarian Mushroom Swiss Burger

Sink your teeth into the ultimate Vegetarian Mushroom Swiss Burger—a hearty, flavor-packed plant-based twist on a classic favorite. Featuring juicy, marinated Portobello mushrooms seasoned with garlic, soy sauce, and balsamic vinegar, this burger delivers a savory umami punch. Topped with melted Swiss cheese, crisp lettuce, fresh tomato slices, and sweet onion rings, each bite is a perfect balance of textures and flavors. Nestled between toasted whole grain buns, this satisfying burger is a quick and easy option, with just 15 minutes of prep and 20 minutes of cooking time—perfect for weeknight dinners or cookouts. Whether you’re a vegetarian or simply looking to cut back on meat, this recipe is a must-try for anyone seeking a bold, satisfying burger experience.

Nutriscore Rating: 71/100

Prep Time:15 mins

Cook Time:20 mins

Total Time:35 mins

Servings: 4

Ingredients

• 4 large Portobello mushrooms
• 3 tablespoons Olive oil
• 2 cloves Garlic cloves
• 2 tablespoons Soy sauce
• 1 tablespoon Balsamic vinegar
• 4 slices Swiss cheese
• 4 Whole grain buns
• 4 pieces Lettuce leaves
• 1 medium Tomato
• 1 small Onion
• 0 to taste Salt
• 0 to taste Black pepper

Directions

Step 1

Clean the Portobello mushrooms by wiping them with a damp paper towel to remove any dirt. Remove the stems and set the caps aside.

Step 2

In a small bowl, whisk together 2 tablespoons of olive oil, minced garlic, soy sauce, and balsamic vinegar.

Step 3

Brush the mixture onto both sides of each mushroom cap and let them marinate for at least 10 minutes.

Step 4

Heat 1 tablespoon of olive oil in a skillet over medium heat. Add the mushroom caps, gill-side up, and cook for 4-5 minutes or until they begin to soften.

Step 5

Flip the mushrooms and cook for an additional 4-5 minutes. Place a slice of Swiss cheese on each mushroom cap, allowing it to melt as the mushroom finishes cooking.

Step 6

While the mushrooms are cooking, prepare the toppings: wash and dry the lettuce leaves, slice the tomato, and slice the onion thinly.

Step 7

Toast the whole grain buns on a grill or in a toaster for a minute or until lightly golden.

Step 8

Assemble the burgers by placing a mushroom cap with melted Swiss cheese on the bottom half of each bun. Layer with lettuce, tomato slices, and onion rings.

Step 9

Sprinkle with salt and black pepper to taste. Cover with the top half of the bun.

Step 10

Serve immediately and enjoy your Vegetarian Mushroom Swiss Burger.

Nutrition Facts

Serving size	(1233.3g)

Amount per serving	% Daily Value*
Calories	1666.5

Total Fat 63.1g	0%
Saturated Fat 12.6g	0%
Polyunsaturated Fat 4.3g
Cholesterol 39.2mg	0%
Sodium 6178.5mg	0%
Total Carbohydrate 200.2g	0%
Dietary Fiber 30.6g	0%
Total Sugars 46.5g
Protein 82.3g	0%

Vitamin D 5.9IU	0%
Calcium 1374.1mg	0%
Iron 12.8mg	0%
Potassium 3350.7mg	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: 33.4%

Protein: 19.4%

Carbs: 47.2%