Sheet-Pan Roasted Veggie Caprese

Featured in: Simple Comfort Bakes

This dish features a medley of zucchini, red bell pepper, and red onion roasted to caramelized perfection. Layered with fresh mozzarella, juicy tomato slices, and fragrant basil, the ingredients are placed between crisp sourdough bread brushed with butter. Quickly grilled until golden and melty, the sandwich offers a harmony of textures and flavors. A balsamic glaze drizzle adds subtle tang, while optional vegetable swaps and spices customize the experience. Ideal for a quick, satisfying meal packed with fresh, seasonal elements.

Updated on Fri, 28 Nov 2025 08:57:00 GMT
Sheet-Pan Roasted Veggie Caprese Grilled Cheese with melted mozzarella and golden, crispy sourdough. Pin it
Sheet-Pan Roasted Veggie Caprese Grilled Cheese with melted mozzarella and golden, crispy sourdough. | emberthyme.com

A vibrant twist on the classic grilled cheese featuring roasted seasonal vegetables, melty mozzarella, juicy tomatoes, and fresh basil all sandwiched between golden crisp sourdough slices.

This sandwich quickly became a family favorite for its blend of flavors and simple preparation.

Ingredients

  • Roasted Vegetables: 1 medium zucchini sliced into rounds, 1 red bell pepper sliced, 1 small red onion sliced, 1 tablespoon olive oil, 1/2 teaspoon kosher salt, 1/4 teaspoon black pepper
  • Sandwich Assembly: 8 slices sourdough bread, 8 ounces fresh mozzarella sliced, 2 medium tomatoes sliced, 1/3 cup fresh basil leaves, 4 tablespoons unsalted butter softened, Balsamic glaze to drizzle (optional)

Instructions

Step 1:
Preheat oven to 425°F (220°C). Line a sheet pan with parchment paper.
Step 2:
Arrange zucchini, red bell pepper, and red onion on the prepared pan. Drizzle with olive oil salt and pepper. Toss to coat and spread in a single layer.
Step 3:
Roast for 18–20 minutes flipping halfway until vegetables are tender and starting to caramelize. Remove from oven and set aside.
Step 4:
Spread butter on one side of each bread slice.
Step 5:
On the unbuttered side of 4 bread slices layer mozzarella roasted vegetables tomato slices and basil. Drizzle with balsamic glaze if desired.
Step 6:
Top each with the remaining bread slices buttered side out.
Step 7:
Heat a large nonstick skillet or griddle over medium heat. Cook sandwiches in batches 3–4 minutes per side until bread is golden and cheese is melted.
Step 8:
Slice and serve warm.
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| emberthyme.com

This recipe makes a perfect family lunch or a satisfying dinner on busy weeknights.

Serving Suggestions

Serve with warm tomato soup or a crisp green salad for a balanced meal.

Storage Tips

Store leftovers wrapped tightly in the fridge and reheat in a skillet for best texture.

Variations

Try adding fresh pesto spread or swapping mozzarella for provolone for a new flavor twist.

Flavorful Sheet-Pan Roasted Veggie Caprese Grilled Cheese featuring roasted veggies, ripe tomatoes, and fresh basil layering. Pin it
Flavorful Sheet-Pan Roasted Veggie Caprese Grilled Cheese featuring roasted veggies, ripe tomatoes, and fresh basil layering. | emberthyme.com

This grilled cheese is sure to become a staple with its fresh ingredients and comforting taste.

Recipe FAQs

What vegetables work best for roasting in this dish?

Zucchini, red bell peppers, and red onions caramelize beautifully, offering sweetness and texture. Seasonal options like eggplant or mushrooms can be substituted for variety.

How do I ensure the bread stays crisp during grilling?

Spread softened butter on the outer slices before grilling over medium heat. This promotes even browning and a golden, crispy crust.

Can I add any herbs for extra flavor?

Fresh basil is key for its aromatic note, but adding a pinch of crushed red pepper can introduce a gentle heat that complements the vegetables well.

Is balsamic glaze necessary for this dish?

The balsamic glaze adds a subtle tangy sweetness that enhances overall flavor, but it is optional based on personal preference.

What’s the best way to slice and serve the sandwich?

After grilling until cheese melts and bread crisps, slice sandwiches in half or quarters and serve warm to enjoy the layers of flavor.

Sheet-Pan Roasted Veggie Caprese

A vibrant blend of roasted vegetables, mozzarella, tomatoes, and basil on golden sourdough slices.

Time to Prep
20 mins
Time to Cook
30 mins
Overall Time
50 mins
By Ember Thyme Clara Henshaw


Skill Level Easy

Cuisine Italian-American

Portions 4 Portion Size

Dietary Details Vegetarian-Friendly

What You’ll Need

Roasted Vegetables

01 1 medium zucchini, sliced into rounds
02 1 red bell pepper, sliced
03 1 small red onion, sliced
04 1 tablespoon olive oil
05 1/2 teaspoon kosher salt
06 1/4 teaspoon black pepper

Sandwich Assembly

01 8 slices sourdough bread
02 8 ounces fresh mozzarella, sliced
03 2 medium tomatoes, sliced
04 1/3 cup fresh basil leaves
05 4 tablespoons unsalted butter, softened
06 Balsamic glaze, to drizzle (optional)

How To Make

Step 01

Preheat Oven: Preheat the oven to 425°F and line a sheet pan with parchment paper.

Step 02

Prepare Vegetables: Arrange zucchini, red bell pepper, and red onion on the sheet pan. Drizzle with olive oil, sprinkle with salt and black pepper, then toss to coat evenly and spread in a single layer.

Step 03

Roast Vegetables: Roast the vegetables for 18 to 20 minutes, flipping halfway through, until tender and beginning to caramelize. Remove from oven and set aside.

Step 04

Butter Bread: Spread softened butter evenly on one side of each sourdough slice.

Step 05

Assemble Sandwiches: On the unbuttered sides of four bread slices, layer sliced mozzarella, roasted vegetables, tomato slices, and fresh basil. Drizzle with balsamic glaze if desired.

Step 06

Top Sandwiches: Place the remaining bread slices on top, buttered side facing out.

Step 07

Cook Sandwiches: Heat a large nonstick skillet or griddle over medium heat. Cook sandwiches in batches for 3 to 4 minutes per side until the bread is golden brown and the cheese has melted.

Step 08

Serve: Slice sandwiches and serve warm.

Equipment Needed

  • Sheet pan
  • Parchment paper
  • Chef's knife
  • Nonstick skillet or griddle
  • Spatula

Allergy Info

Review every ingredient for allergens and talk to your healthcare provider if you’re unsure.
  • Contains wheat (bread), milk (mozzarella, butter). Verify labels if allergies are a concern.

Nutrition Details (for each portion)

This nutritional info is just for reference—always consult your healthcare provider for specific advice.
  • Calorie Count: 420
  • Fats: 20 g
  • Carbohydrates: 44 g
  • Proteins: 16 g