Mozzarella Pesto Stuffed Chicken Breasts

Mozzarella pesto stuffed chicken breasts are one of those dinners that look like you spent hours in the kitchen but come together in about 40 minutes flat. You butterfly the chicken, spread on a layer of herby pesto, tuck in slices of fresh mozzarella, and sear the whole thing until golden before finishing it in the oven. The result is a juicy, cheesy center with a slightly crisp outside, and the basil pesto perfumes every single bite.

This is the kind of recipe that works on a Tuesday when you're tired but still want something that feels like a real meal. It also holds up beautifully for a dinner party, served alongside roasted vegetables or a simple arugula salad.

What You'll Need

For four servings, gather four boneless skinless chicken breasts, about half a cup of basil pesto (store-bought works perfectly well here), eight ounces of fresh mozzarella sliced into rounds, two tablespoons of olive oil, salt, black pepper, and a handful of fresh basil leaves if you want to garnish.

• For tools, you need a sharp knife, toothpicks or kitchen twine to close the chicken, and an oven-safe skillet.
• A cast iron pan is ideal because it gives you a great sear and goes straight from stovetop to oven without any fuss.

How to Butterfly and Stuff the Chicken

Place one chicken breast flat on your cutting board. Hold your hand flat on top and slice horizontally through the middle, stopping about half an inch before the edge so it opens like a book. This is called butterflying, and it takes about ten seconds once you get the hang of it. Repeat with the remaining breasts.

Season the inside of each breast generously with salt and pepper. Spread about two tablespoons of pesto across the interior, going all the way to the edges. Lay two or three mozzarella slices on one half, then fold the other half over to close it up.

Secure the opening with two or three toothpicks pushed in at an angle. This keeps the cheese from melting out into the pan before it has a chance to get gooey inside the chicken. Don't skip this step, it makes a real difference.

Cooking Method: Sear Then Bake

Preheat your oven to 400°F. Heat the olive oil in your oven-safe skillet over medium-high heat until it shimmers. Season the outside of the stuffed chicken breasts with salt and pepper, then place them in the pan.

Sear for three to four minutes per side without moving them. You want a deep golden crust, which adds flavor and also helps seal in the juices. Once both sides are browned, transfer the entire skillet to the oven.

Bake for 18 to 22 minutes, until the internal temperature reads 165°F on an instant-read thermometer. The exact time depends on how thick your chicken breasts are, so check at the 18-minute mark. Let the chicken rest for five minutes before removing the toothpicks and slicing.

Tips for the Best Results

Don't use pre-shredded mozzarella here. Fresh mozzarella has a higher moisture content and melts into that soft, stretchy pool that makes each bite satisfying. Pre-shredded cheese tends to stay grainy and dry.

If your chicken breasts are very thick, consider pounding them lightly after butterflying. Place them between two sheets of plastic wrap and give them a few taps with a rolling pin or meat mallet until they're an even thickness throughout. Even cooking is the goal.

Homemade pesto is wonderful if you have fresh basil on hand, but a good quality jarred pesto from the grocery store is completely fine and cuts your prep time to almost nothing. Trader Joe's and Aldi both carry solid options that taste bright and herby.

For a bit of extra flavor, add a thin layer of sun-dried tomatoes on top of the pesto before adding the mozzarella. It adds a sweet, concentrated tomato note that pairs beautifully with the basil.

Serving Ideas

This chicken is flexible enough to pair with almost anything. Roasted asparagus or green beans keep it light and simple. A scoop of creamy polenta or mashed potatoes makes it feel more substantial. For a lower-effort side, toss cherry tomatoes and arugula with olive oil, lemon juice, and a pinch of salt, then pile it alongside the sliced chicken so the peppery greens contrast the richness of the cheese.

Leftovers reheat well the next day. Slice the chicken and warm it gently in a covered skillet with a splash of water over low heat, which keeps it from drying out. The leftover slices are also good cold on a sandwich with a little extra pesto spread on crusty bread.

Make It Ahead

You can stuff and secure the chicken breasts up to 24 hours ahead and keep them covered in the refrigerator. When you're ready to cook, let them sit at room temperature for about 15 minutes before searing so they cook more evenly. This makes the recipe great for entertaining because the prep is done and dinner comes together quickly when guests arrive.

Frequently Asked Questions