Melty Portabella Sandwiches

Get ready to elevate your sandwich game with these irresistible Melty Portabella Sandwiches! Featuring meaty, marinated portabella mushroom caps grilled to tender perfection and blanketed with ooey-gooey provolone or Swiss cheese, these sandwiches are a flavor-packed vegetarian delight. A tangy balsamic and garlic marinade infuses the mushrooms with rich, savory notes, while sweet caramelized onions and fresh baby spinach or arugula provide the perfect balance of textures. Nestled inside toasted ciabatta rolls and optionally slathered with Dijon mustard or mayonnaise, these hearty sandwiches are an easy yet gourmet meal idea. Quick to prepare in just 35 minutes, they're perfect for weeknight dinners, casual lunches, or a crowd-pleasing vegetarian option at your next gathering.

Nutriscore Rating: 66/100

Prep Time:15 mins

Cook Time:20 mins

Total Time:35 mins

Servings: 4

Ingredients

• 4 pieces Portabella mushroom caps
• 3 tablespoons Olive oil
• 2 tablespoons Balsamic vinegar
• 2 pieces Garlic cloves, minced
• 1 tablespoon Soy sauce
• 1 teaspoon Dried oregano
• 0.5 teaspoon Salt
• 0.25 teaspoon Black pepper
• 1 large Yellow onion, thinly sliced
• 1 tablespoon Butter
• 4 slices Provolone or Swiss cheese slices
• 4 pieces Ciabatta rolls or sandwich buns
• 1 cup Baby spinach or arugula
• 2 tablespoons Dijon mustard or mayonnaise (optional)

Directions

Step 1

In a small bowl, whisk together 2 tablespoons of olive oil, balsamic vinegar, minced garlic, soy sauce, dried oregano, salt, and black pepper to create the marinade.

Step 2

Place the portabella mushroom caps in a shallow dish and pour the marinade over them. Use a spoon or brush to coat the mushrooms evenly. Let them marinate for at least 10 minutes, flipping halfway through.

Step 3

In a large skillet, heat 1 tablespoon of olive oil over medium heat. Add the thinly sliced onion and cook, stirring occasionally, for 10-12 minutes until the onions are golden brown and caramelized. Add a pinch of salt and transfer the onions to a plate.

Step 4

In the same skillet, add the marinated portabella mushrooms, gill side down, and cook for 4 minutes over medium heat. Flip the mushrooms and cook for another 4 minutes, or until tender.

Step 5

Top each mushroom cap with a slice of cheese while still in the skillet. Cover the skillet with a lid and let the cheese melt for about 1 minute, then remove from heat.

Step 6

If desired, toast the ciabatta rolls or sandwich buns by placing them cut side down in a dry skillet for 1-2 minutes until golden.

Step 7

To assemble the sandwiches, spread Dijon mustard or mayonnaise (if using) on the bottom half of each roll. Layer with a handful of baby spinach or arugula, a cheese-topped mushroom, and caramelized onions. Place the top half of the roll on the sandwich.

Step 8

Serve the Melty Portabella Sandwiches warm, and enjoy!

Nutrition Facts

Serving size	(1260.3g)

Amount per serving	% Daily Value*
Calories	2016.7

Total Fat 94.3g	0%
Saturated Fat 34.5g	0%
Polyunsaturated Fat 4.4g
Cholesterol 112.9mg	0%
Sodium 5365.6mg	0%
Total Carbohydrate 221.7g	0%
Dietary Fiber 17.0g	0%
Total Sugars 24.4g
Protein 75.2g	0%

Vitamin D 54.2IU	0%
Calcium 1014.4mg	0%
Iron 12.8mg	0%
Potassium 2444.3mg	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: 41.7%

Protein: 14.8%

Carbs: 43.5%