Follow these simple steps to create perfectly Caprese Stuffed Chicken Breast every time:

1. Preheat Your Oven and Prepare Chicken: Preheat your oven to 400°F (200°C). While the oven is preheating, let’s get started with the chicken. Place the chicken breasts on a cutting board. To ensure even cooking and create a pocket for the stuffing, we need to butterfly each chicken breast. Using a sharp knife, carefully slice horizontally through the side of each chicken breast, being careful not to cut all the way through. Open it up like a book. You should now have a larger, thinner piece of chicken, perfect for stuffing. If your chicken breasts are very thick, you can gently pound them to an even thickness of about 1/2 inch using a meat mallet or rolling pin. Place the chicken between two sheets of plastic wrap before pounding to prevent tearing and splattering. Pounding helps tenderize the chicken and ensures it cooks evenly.
2. Prepare the Caprese Filling: Now, let’s get the star of the show ready – the Caprese filling! Slice the fresh mozzarella cheese into slices about 1/4 inch thick. Similarly, slice the ripe tomatoes into slices of the same thickness. If you are using smaller tomatoes like Roma tomatoes, you might need to use a few more to get enough slices. Roughly chop the fresh basil leaves. Mince the garlic cloves. Having all your filling components prepped and ready to go will make the stuffing process smooth and efficient.
3. Season the Chicken: Season both sides of the butterflied chicken breasts generously with salt, black pepper, and Italian seasoning (if using). Don’t be shy with the seasoning – it’s crucial for flavorful chicken. Ensure you season the inside of the pocket as well as the outside. The seasoning will penetrate the chicken as it cooks, enhancing the overall taste. You can also add a pinch of garlic powder or onion powder to the seasoning mix for extra depth of flavor if desired.
4. Stuff the Chicken Breasts: Now comes the fun part – stuffing the chicken! Open up each butterflied chicken breast. Inside the pocket of each chicken breast, layer mozzarella slices, tomato slices, and chopped fresh basil leaves. Be generous with the filling, but don’t overstuff, as you want to be able to close the chicken breast securely. A good rule of thumb is to use about 2-3 slices of mozzarella and 2-3 slices of tomato per chicken breast, along with a generous sprinkle of basil. Try to distribute the filling evenly across the pocket.
5. Secure the Chicken (Optional): To ensure the filling stays inside during baking and the chicken breasts hold their shape, you can secure them with toothpicks. Carefully close each stuffed chicken breast and insert 2-3 toothpicks to hold the edges together. Alternatively, you can use kitchen twine to tie the chicken breasts closed. This step is optional, but it can be helpful, especially if you are using a lot of filling or if your chicken breasts are not very thick. If you choose not to secure them, just ensure you place them seam-side down in the baking dish initially.
6. Sear the Chicken (Optional for Extra Flavor): For an extra layer of flavor and a beautiful golden-brown crust, you can sear the chicken breasts before baking. Heat a tablespoon of olive oil in a large oven-safe skillet over medium-high heat. Once the skillet is hot, carefully place the stuffed chicken breasts in the skillet and sear for 2-3 minutes per side, until golden brown. Searing is not essential for cooking the chicken through, but it adds a wonderful depth of flavor and texture. If you sear the chicken, make sure your skillet is oven-safe, as you will transfer it directly to the oven after searing.
7. Bake the Chicken: Whether you seared the chicken or not, it’s time to bake it. If you didn’t sear, place the stuffed chicken breasts in a baking dish lightly greased with olive oil. Drizzle the remaining tablespoon of olive oil over the chicken breasts. Bake in the preheated oven for 25-30 minutes, or until the chicken is cooked through and the internal temperature reaches 165°F (74°C). Use a meat thermometer to check the internal temperature at the thickest part of the chicken breast. The mozzarella should be melted and gooey, and the tomatoes should be softened and fragrant. Baking time may vary depending on the thickness of your chicken breasts, so it’s always best to check the internal temperature to ensure doneness.
8. Rest and Garnish: Once the chicken is cooked through, remove it from the oven and let it rest for 5-10 minutes before serving. Resting allows the juices to redistribute throughout the chicken, resulting in a more tender and flavorful final product. If you used toothpicks or twine, remove them before serving. Drizzle balsamic glaze over the chicken breasts (if using) for a touch of sweetness and visual appeal. Garnish with extra fresh basil leaves for a final flourish of freshness and aroma.
9. Serve and Enjoy: Your Caprese Stuffed Chicken Breast is ready to be served! Serve it immediately while it’s hot and the mozzarella is beautifully melted. This dish pairs wonderfully with a variety of sides, as we’ll discuss in the “How to Serve” section. Enjoy the delicious combination of juicy chicken, creamy mozzarella, and fresh tomatoes and basil!