You don’t need a fancy panini press to enjoy my Grilled Summer Vegetable Panini—just a hot pan and something heavy to press it down or a grill. A hearty toasted sandwich with grilled veggies like eggplant (aubergine) bell peppers, and zucchini (courgette), layered with melty cheese and a spread of sun-dried tomato pesto, this sandwich is summer in every bite. 

Holding a half of the panini with lots of melted cheese strings


What is a Panini?

Panini (plural; singular in Italian: panino)is an Italian grilled or toasted sandwich, typically made with Italian bread like ciabatta or focaccia. It’s filled with ingredients like meats, cheeses, vegetables, and spreads, then pressed and grilled to create a warm, crispy, melty sandwich.

Grilled summer vegetable panini on a cutting board cut in half

Best Bread for Panini

  1. Ciabatta – Lightly crisp crust with a soft, airy interior; a classic panini bread.
  2. Focaccia – Herby, rich, and slightly chewy; adds great flavor and texture.
  3. Sourdough – Tangy and firm; grills beautifully and adds character.
  4. Baguette (halved lengthwise) – Crunchy and dense; ideal for hearty fillings.
  5. Italian bread – Soft but sturdy enough to hold fillings; great all-around option.
  6. Multigrain or whole wheat – For a healthier twist, just make sure it’s not too soft or it may get soggy.

Bread to Avoid

Avoid soft sandwich bread – it tends to flatten too much and doesn’t hold up to grilling. Choose something with structure and crust.

Sun-Dried Tomato Spread

Sun-dried tomatoes are one of my favorite ways to add sweet flavor to many dishes. By turning them into a Pesto (pictured above), I use it in my Grilled Vegetable Pasta Salad—or as the secret flavor weapon in Hummus and this vegetable grilled cheese, spread right onto the bread.

Summer Vegetables

For this Italian-inspired Grilled Summer Vegetable Panini, I like to use meaty eggplant, summer zucchini (courgette) and grilled bell peppers. All are simply seasoned with salt, pepper and dried oregano and the oil from the sun-dried tomatoes.

Grilling Vegetables

This can be done on your outdoor grill, or on the stove top using a grill pan. It’s the perfect way to bring a taste of summer to these fancy grilled cheese (or toasties as we call them in the UK).

Grilling Eggplant/Aubergine

It’s best to completely remove the eggplant peel for this recipe. When I’ve made this panini without peeling the eggplant, I find that the skin becomes tough and you end up pulling the eggplant out of the sandwich when you take a bite. 

Also, slice the eggplant fairly thick, as it loses a lot of moisture while cooking and can become very thin. I chop the bell pepper into pieces for the same reason—it can shrink and slip out just as easily.

3 halves of a Grilled summer vegetable panini from above on a board with a knife and fresh herbs

Best Cheese for Panini

For this recipe, I recommend creamy provolone – it complements the vegetables and melts beautifully. Mozzarella is also one of the best melting cheeses, but since it doesn’t have much flavor, I’d opt for Havarti or a mild cheddar instead.

Bonus Cheese Tip

Mix cheeses! For example, mozzarella + cheddar gives you melt + flavor. Or provolone + Gruyère for a rich, savory combo.

No Panini Maker?  No Problem

You don’t need a panini maker for this sandwich; you can use your indoor or outdoor grill (which gives great grill marks on the bread). If you don’t have a grill, a heavy skillet or pan works just like when you make grilled cheese. If you don’t have a grill, just sauté the vegetables in the pan before assembling and cooking the panini.

Optional Variations and Substitutions

  • Add grilled onions or portobello mushrooms for extra flavor and a meaty bite.
  • If you don’t want to make the sun-dried tomato pesto, use store-bought or homemade basil pesto instead.
  • Hummus also makes a delicious alternative spread.
Grilled eggplant, zucchini bell pepper and cheese oozing from the panini
5 from 4 reviews

Grilled Summer Vegetable Panini

Grilled eggplant, bell pepper, zucchini and cheese with a delicious sun-dried tomato spread.

Video

Ingredients
 

  • 8 tablespoons sun-dried tomatoes in olive oil
  • 3 tablespoons oil from the sun-dried tomatoes, If you can’t find sun-dried tomatoes in oil, substitute olive oil
  • 1 garlic clove
  • 8 small/4 large fresh basil leaves
  • 4 slices of eggplant, peeled and sliced vertically, about ½-inch/1.2 cm thick
  • 1 large bell pepper, seeds removed and cut into large pieces
  • 8 slices zucchini/courgette, sliced vertically
  • Olive oil
  • Salt
  • Ground black pepper
  • Dried Oregano
  • 8 slices of bread of your choice
  • 8 slices provolone, cheese

Instructions
 

  • Preheat grill on medium.
  • Add the sun-dried tomatoes, oil, garlic and basil to a blender. Blend until a paste forms, add more oil as needed, set aside.
  • Brush the vegetables with the 3 tablespoons sun-dried tomato olive oil and sprinkle with salt, pepper and oregano on both sides.
  • Grill the vegetables on both sides until they are tender and browned. Or sauté in a heavy skillet until browned on both sides. Remove from the pan and set aside.
  • Brush 1 side of each slice of bread, turn with the unflavored olive oil lay faced down on a board. Spread an even layer of the sun-dried tomato mix on each slice of bread. Lay 1 slice of cheese on 4 slices of bread. Top each of them with a slice of eggplant, bell pepper and 2 slices of zucchini/courgette. Top each with a slice of cheese. Take the tops of the bread and place, sun-dried tomato paste down. Brush the tops with olive oil.
  • Place the sandwiches on the grill and grill (or in the heavy pan) until the cheese starts to melt and they are browned, turn and repeat. Serve immediately.

Notes

 
 
Serving: 1, Calories: 373kcal, Carbohydrates: 45g, Protein: 27g, Fat: 17g, Polyunsaturated Fat: 22g, Cholesterol: 39mg, Sodium: 964mg
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