Grilled Chicken Caprese Sandwich

I love a good sandwich situation, and this chicken Caprese sandwich might be one of my favorite ways to turn simple ingredients into something that feels extra special. It has juicy chicken, basil pesto, ripe tomato, fresh mozzarella, and toasted ciabatta, which basically means every bite is fresh, creamy, and savory!

Caprese flavors always feel like summer to me, especially when tomatoes are at their best and dinner needs to be easy but still worth getting excited about. As a dietitian and Southern cook, I love that this sandwich gives you protein, produce, and plenty of flavor while still feeling realistic for a quick lunch, easy dinner, or leftover chicken glow-up. 

If you already have my grilled balsamic chicken made, this sandwich comes together even faster and gives every bite that sweet, tangy flavor that pairs so well with pesto and mozzarella. 

Why You'll Love This Recipe

• Quick enough for lunch or dinner: Use grilled chicken or leftover chicken and you can have these sandwiches ready fast.
• Tastes like summer: Juicy tomatoes, basil pesto, fresh mozzarella, and balsamic chicken bring all those fresh Caprese flavors together.
• Filling but still fresh: The chicken adds satisfying protein, while the tomato and pesto keep every bite bright and flavorful.

Ingredients for Caprese Chicken Sandwich

This recipe uses simple, fresh ingredients, so choosing good ones makes the sandwich taste extra delicious.

• Chicken breast: I love using grilled balsamic chicken here because the sweet and tangy flavor pairs so well with the pesto, tomato, and mozzarella. You can also use plain grilled chicken, thin chicken cutlets, or rotisserie chicken in a pinch.
• Pesto: Store-bought pesto keeps this recipe quick and realistic, but homemade pesto works too. If your pesto is really thick, stir in a little olive oil or mayo so it spreads easily.
• Tomato: Use ripe but firm tomatoes for the best flavor and texture. Summer tomatoes, heirloom tomatoes, beefsteak tomatoes, or thick-sliced Roma tomatoes all work well.
• Fresh mozzarella cheese: A mozzarella log is easy to slice and stack on sandwiches. Pat the slices dry if they feel extra wet so the bread doesn't get soggy.
• Ciabatta rolls: Ciabatta is sturdy enough to hold the chicken, pesto, tomato, and mozzarella without falling apart. Toasting it gives the sandwich the best texture.
• Balsamic glaze: A small drizzle adds a sweet, tangy finish. You may not need much if you are using grilled balsamic chicken. My spicy balsamic glaze is extra delicious!
• Olive oil or butter: Use a little to toast the bread if you want the ciabatta extra golden and crisp.

See the recipe card below for the full list of ingredients and measurements.

Substitutions & Variations

Give yourself permission to make this sandwich work with what you have in the fridge.

• You can use rotisserie chicken when you want this sandwich to come together extra fast.
• Press the assembled sandwich in a skillet or panini press to make a warm, crispy chicken Caprese panini with melty mozzarella.
• Add a handful of arugula for a peppery bite and a little extra green.
• Stir pesto with mayo to make pesto mayo if you want a creamier spread that tastes a little milder than straight pesto.
• Swap in focaccia or sourdough if you don't have ciabatta, as long as the bread feels sturdy enough to hold the fillings.
• Add prosciutto or crispy bacon if you want a salty, savory twist that makes the sandwich feel a little more special.
• Mix in Calabrian chili paste or red pepper flakes if you want a spicy kick with the pesto and balsamic.
• Use burrata instead of mozzarella when you want a creamier, more elevated version.

How to Make Caprese Chicken Sandwich Recipe

Here's how to bring this summertime sandwich together without overthinking it.

Step 1: Cook the chicken breast if needed, or warm leftover grilled balsamic chicken until heated through. Slice the chicken into pieces that fit easily on the ciabatta rolls.

Step 2: Slice the ciabatta rolls in half. Toast them in a skillet, toaster oven, oven, or on the grill until lightly golden.

Step 3: Spread pesto on the cut sides of the toasted ciabatta. You can add pesto to one side or both sides depending on how much flavor you want.

Step 4: Add the sliced chicken, fresh mozzarella, tomato slices, and fresh basil if using.

Step 5: Drizzle with a little balsamic glaze if desired. A small amount goes a long way.

Step 6: Add the top half of the roll, gently press the sandwich together, and serve while the bread is still crisp.

Tips For Best Chicken Pesto Caprese Sandwich

A few little details make the difference between a good sandwich and one you will want to make all summer.

• Slice or pound the chicken into thinner chicken pieces so each bite feels tender and easy to eat.
• Give the bread a few minutes to toast because toasted ciabatta adds texture and helps keep the sandwich from getting soggy.
• Gently blot juicy tomato slices  and mozzarella slices with a paper towel before layering them on the sandwich.
• Assemble the sandwich right before serving so crisp bread and fresh toppings stay at their best.

Storage

This sandwich tastes best assembled fresh, but you can prep the ingredients ahead to make it easier.

• Leftovers: Store the chicken separately in an airtight container in the refrigerator for 3 to 4 days. Keep the tomato, mozzarella, pesto, and ciabatta separate until you are ready to assemble so the bread stays fresh.