Grilled Veggie Caprese Sandwich Recipe

A grilled veggie Caprese sandwich that turns summer’s best produce into lunch in about 20 minutes. Charred zucchini and eggplant, fresh mozzarella, ripe tomatoes, basil, and a drizzle of balsamic — no cooking skills required, just a hot grill.

In summer I make Caprese salad on repeat – tomatoes, fresh mozzarella, a little grilled zucchini and eggplant.

One hungry afternoon I stacked it all onto a torta bun instead of a plate, and it’s been a warm-weather lunch staple ever since.

The charred veggies make it filling enough to be a real meal, not just a side.

Everything here is fresh and seasonal, so it’s at its best when tomatoes actually taste like tomatoes.

Grab them from a farmers market if you can – it’s the difference between good and unforgettable.

Why You’ll Love This Caprese Sandwich

It comes together in about 20 minutes, start to finish. The grill does all the work, and the ingredient list is short and forgiving. It’s vegetarian and satisfying on its own, but easy to build on — add pesto or grilled chicken if you want more. And it scales beautifully: slice this grilled vegetable caprese sandwich into smaller pieces and it becomes a party appetizer.

How to Make It

1. Heat a gas grill to medium-high.
2. Drizzle the zucchini and eggplant slices with olive oil and grill 3–5 minutes per side, until soft and charred.
3. Optional: grill the buns cut-side down for about a minute to warm them.
4. Build the sandwich — eggplant on the bottom, then zucchini, tomato, and mozzarella. Top with fresh basil and a drizzle of balsamic.
5. Add the top bun, cut in half, and serve. Or slice into smaller pieces for an appetizer.

Tips For Grilled Vegetable Caprese Sandwich

Make extra grilled veggies. They keep for days and turn into salads, pasta, or tomorrow’s sandwich.

Slice the veggies an even 1/4 inch so they cook at the same rate.

Let the grilled veggies rest a minute before building — it keeps the bread from going soggy.

A reduced balsamic (or store-bought glaze) clings better than regular vinegar and adds a little sweetness.

Serving Ideas

This is a full lunch on its own, but it rounds out a summer spread alongside grilled chicken and potatoes, beef kebabs, or a simple green salad. For a party, cut it into two-inch pieces and pin each with a toothpick.

FAQs For Fresh Mozzarella and Tomato Sandwich

Can I make this ahead? The grilled veggies can be made a day or two ahead and kept in the fridge — they’re great cold or at room temperature. Assemble the sandwich right before eating so the bread stays fresh.

Can I make it without a grill? Yes. A grill pan on the stovetop or a hot oven broiler both char the veggies nicely. You want them soft with a little color, however you get there.

What cheese works if I can’t find fresh mozzarella? Fresh mozzarella is best for that soft, creamy texture, but sliced provolone or burrata both work. In a pinch, even a good melting cheese does the job.