This vegetarian, gluten free Italian Grilled Portobello Caprese Sandwich combines fresh mozzarella, tomatoes & basil between two large portobello mushrooms.

Grilled Portobello Caprese Pesto Sandwich

Welcome to “Sandwich Week” on the blog where you’ll find recipes for BLT Chipotle Chicken Sandwiches, Greek Chicken Salad Sandwiches and this delicious vegetarian Portobello Caprese Sandwich!

Gluten Free Grilled Portobello Mushroom Sandwich

While I usually love a couple slices of delicious bread to hold my sandwich together, I decided to go totally vegetarian and totally gluten free with this Portobello Caprese Sandwich.

Two hearty portobello mushrooms filled with fresh mozzarella, sun dried tomato pesto and loads of other delicious flavors make this is a unique sandwich not to be missed!

Portobello Caprese Sandwich Ingredients

Portobello Caprese Sandwich Ingredients

  • 2 large portobello mushrooms
  • 2 tbsp sun dried tomato pesto
  • 1 tsp garlic (crushed)
  • 1/2 cup fresh mozzarella cheese (sliced)
  • 1/2 roma tomato (sliced)
  • 4-6 large fresh basil leaves
  • 1/4 cup sliced peperoncinis
  • 1/2 cup roasted bell peppers
  • olive oil cooking spray

Portobello Caprese Sandwich Instructions

Turn heat on the grill to medium or preheat the oven to 400°F.

Clean out the inside of the mushrooms with a spoon.  During this process, try not to break the sides of the mushroom. (You want to be sure and keep all those delicious goodies inside the sandwich during the grilling process!)

Portobello Caprese Sandwich Recipe

Place 1 tbsp of pesto and 1/2 tsp of crushed garlic onto each mushroom.

Portobello Caprese Sandwich Recipe

Top each portobello with a large slice of mozzarella.

Portobello Mushroom Sandwich Recipe

Top one of the mushrooms with the sliced tomatoes.

Portobello Caprese Sandwich Recipe

Then add the basil.

Portobello Caprese Sandwich Recipe

On the other mushroom, top with the peperoncini’s.

Portobello Caprese Sandwich with Pepperoncinis

Then the roasted bell peppers.

Roasted Red Pepper Caprese Portobello Sandwich

Carefully put the two sides together.

Portobello Caprese Sandwich Recipe

Spray the grill with cooking spray then place the sandwich onto the grill for 20 minutes, flipping carefully half way through.

If a grill is not available, you can also place the sandwich into the oven on a rimmed baking sheet for 20 minutes or until the mozzarella is melted.

Grilled Portobello Caprese Sandwich

Remove from the grill and dig in!

Grilled Portobello Caprese Sandwich

So much melty goodness and flavor in every bite!

Grilled Vegetarian Caprese Sandwich

The portobello mushroom is so meaty, making it the perfect exterior for this vegetarian sandwich!

Italian Vegetarian Caprese Sandwich

Grilled Portobello Caprese Pesto Sandwich
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Portobello Caprese Sandwich

This vegetarian, gluten free Italian Grilled Portobello Caprese Sandwich combines fresh mozzarella, tomatoes & basil between two large portobello mushrooms.

Ingredients

  • 2 large portobello mushrooms
  • 2 tbsp sun dried tomato pesto
  • 1 tsp garlic, crushed
  • 1/2 cup fresh mozzarella cheese, sliced
  • 1/2 roma tomato, sliced
  • 4 basil leaves
  • 1/4 cup peperoncinis, sliced
  • 1/2 cup roasted bell peppers
  • olive oil cooking spray

Instructions

  • Turn the heat on the grill to medium.
  • Clean out the inside of the mushrooms with a spoon.
  • Place 1 tbsp of pesto and 1/2 tsp of crushed garlic onto each mushroom.
  • Top each portobello with a large slice of mozzarella.
  • Top one of the mushrooms with the sliced tomatoes and basil.
  • On the other mushroom, top with the peperoncini’s and roasted bell peppers.
  • Carefully put the two sides together.
  • Spray the grill with cooking spray then place the sandwich onto the grill for 20 minutes, flipping carefully half way through.

Nutrition Facts

Calories 284kcal (14%)Carbohydrates 18g (6%)Protein 18g (36%)Fat 16g (25%)Saturated Fat 8g (40%)Cholesterol 46mg (15%)Sodium 1606mg (67%)Potassium 909mg (26%)Fiber 5g (20%)Sugar 8g (9%)Vitamin A 1385mg (28%)Vitamin C 64.4mg (78%)Calcium 340mg (34%)Iron 1.7mg (9%)
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