Juicy, flavorful, and packed with melty mozzarella and savory spinach, stuffed chicken breasts are the kind of dish that turns an ordinary weeknight into something special. With just a handful of simple ingredients—tender chicken, sun-dried tomatoes, and a blend of Italian herbs—you get a meal that’s as comforting as it is impressive.
Preheat oven to 375°F. Use a sharp knife to carefully cut a horizontal pocket into each chicken breast, being careful not to cut all the way through.
In a bowl, mix mozzarella, Parmesan, spinach, sun-dried tomatoes, Italian seasoning, garlic powder, salt, and pepper until well combined.
Stuff each chicken breast with about 1/4 cup of the filling, then secure the opening with toothpicks to prevent leakage.
Heat olive oil in an oven-safe skillet over medium-high heat. Sear the chicken for 3–4 minutes per side until golden brown.
Transfer the skillet to the oven and bake for 20–25 minutes, or until the chicken reaches 165°F internally. Let the chicken rest for 5 minutes before removing toothpicks and slicing. Serve warm.
For a lighter version, swap half the mozzarella with low-fat cottage cheese. If your filling feels too wet, blot the spinach with a paper towel before mixing. Leftovers keep beautifully in the fridge for up to 3 days.