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The Ultimate Beginner-Friendly Grilled Mozzarella Sandwich

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This Grilled Mozzarella Sandwich is a beginner’s dream—golden, buttery bread with a gooey, melty mozzarella center. A simple yet indulgent recipe that proves comfort food doesn’t have to be complicated!

  • Total Time: 15 minutes
  • Yield: 4 servings

Ingredients

Scale

For the Sandwich:

  • 4 slices sourdough bread (or whole wheat, ciabatta, or any sturdy bread)
  • 4 oz mozzarella cheese, sliced (or provolone, Monterey Jack, or cheddar)
  • 1 large tomato, sliced
  • 2 oz roasted red peppers, jarred (or fresh red bell peppers, roasted at home)
  • 4 oz grilled or shredded chicken (or thinly sliced roast beef for extra protein)

For the Pesto:

  • ½ cup fresh basil leaves (or a mix of basil and spinach for variety)
  • 2 cloves garlic, peeled
  • 2 tablespoons walnuts (or almonds, cashews, or sunflower seeds)
  • 2 tablespoons grated Parmesan cheese (or nutritional yeast for a dairy-free option)
  • Salt and pepper, to taste
  • ¼ cup olive oil (or avocado oil for a lighter taste)

Instructions

Step 1: Prepare the Pesto

Homemade pesto is one of the easiest condiments to make, and it adds an incredible depth of flavor to this sandwich.

  1. In a food processor, combine the basil leaves, garlic, walnuts, and Parmesan cheese. Season with salt and pepper.
  2. Blend for a few seconds until the ingredients are roughly chopped.
  3. While the food processor is running, slowly drizzle in the olive oil. This will help the oil emulsify with the other ingredients, creating a smooth and rich pesto.
  4. Taste and adjust seasoning if needed. If you prefer a thinner consistency, add a little more olive oil.

Step 2: Assemble the Sandwich

  1. Lay out the four slices of sourdough bread.
  2. Spread a generous amount of the homemade pesto on each slice.
  3. On two slices of bread, layer the mozzarella cheese, tomato slices, roasted red peppers, and either grilled chicken or roast beef.
  4. Top with the remaining bread slices to create a sandwich.

Step 3: Grill the Sandwich

If using a panini press:

  1. Preheat the panini maker.
  2. Place the assembled sandwiches inside and close the lid.
  3. Grill for 2–3 minutes or until the bread is golden brown, and the cheese is melted.

If using a stovetop pan:

  1. Heat a nonstick or cast-iron skillet over medium heat.
  2. Lightly brush the outer sides of the bread with olive oil or butter for an extra crispy texture.
  3. Place the sandwiches in the pan and cook for 2–3 minutes on one side.
  4. Carefully flip and cook for another 2–3 minutes until the cheese is melted and the bread is golden brown.

Step 4: Serve and Enjoy

Once the sandwiches are grilled to perfection, remove them from the heat. Let them cool for a minute, then slice them in half. Serve immediately with your favorite side dishes.

Notes

  • How to Tell if the Cheese is Melted: The cheese should be gooey and stringy when pulled apart. If it is still firm, let the sandwich cook a little longer on low heat.
  • Preventing Soggy Bread: Make sure the tomatoes and roasted red peppers are patted dry with a paper towel before adding them to the sandwich. Too much moisture can make the bread soggy.
  • Cooking Without a Panini Press: If you do not have a panini press, use a heavy skillet to press down on the sandwich while cooking in a regular pan. This helps achieve a crispy crust.
  • Substituting the Pesto: If you do not have a food processor, store-bought pesto works just as well. Just be sure to choose a high-quality brand with fresh ingredients.
  • Author: Paula Susan
  • Prep Time: 10 minutes
  • Cook Time: 5 minutes