Grilled Portobello Mushroom Sandwich with Pesto and Mozzarella Cheese

February 10, 2025

A hearty vegetarian sandwich featuring juicy grilled portobello mushrooms, melty mozzarella cheese, and vibrant pesto, served on toasted ciabatta bread.

Yield

Makes 2 sandwiches

Ingredients

For the Sandwiches:

2 large portobello mushroom caps, cleaned and stems removed
2 tablespoons olive oil
1/4 teaspoon garlic powder
1/4 teaspoon salt
1/4 teaspoon freshly ground black pepper
2 tablespoons pesto (store-bought or homemade)
4 ounces fresh mozzarella cheese, sliced
2 ciabatta rolls or sourdough sandwich bread, sliced
1/2 cup baby spinach or arugula (optional)

Optional Garnish:

Balsamic glaze drizzle

Instructions

Step 1: Prepare the Portobello Mushrooms

Preheat a grill or grill pan over medium heat.
Brush the portobello mushroom caps with olive oil and sprinkle with garlic powder, salt, and pepper on both sides.

Step 2: Grill the Mushrooms

Place the mushrooms on the grill, gill side down, and cook for about 4–5 minutes per side, until tender and lightly charred.

Step 3: Assemble the Sandwiches

Spread 1 tablespoon of pesto on the inside of each ciabatta roll or slice of bread.
Place one grilled portobello mushroom on the bottom half of each roll.
Layer slices of mozzarella cheese on top of the mushrooms.
Add a handful of baby spinach or arugula, if desired.

Step 4: Melt the Cheese

Option 1 (Grill): Place the assembled sandwiches back on the grill, close the lid, and grill for 2–3 minutes, or until the cheese is melted.
Option 2 (Skillet): Heat a skillet over medium-low heat, place the sandwiches in the skillet, and cover with a lid. Cook for 2–3 minutes on each side, or until the cheese is melted and the bread is golden.

Step 5: Serve

Slice the sandwiches in half and serve warm. Drizzle with balsamic glaze for added flavor, if desired.

Kitchen Tips

Pesto Tip: Use a high-quality pesto made with fresh basil for the best flavor, or make your own using olive oil, basil, Parmesan, garlic, and pine nuts.
Bread Options: Ciabatta, focaccia, or sourdough work best for this sandwich due to their sturdy texture.
Extra Flavor: Add roasted red peppers or sun-dried tomatoes for an extra layer of flavor.

Nutritional Information (Per Sandwich)

Juicy portobello mushrooms, creamy mozzarella, and vibrant pesto come together in this delicious and satisfying grilled sandwich. Perfect for a hearty lunch or dinner!

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