01 - Preheat your oven to 390°F.
02 - Using a sharp knife, make deep cuts about ½ inch apart across each chicken breast, being careful not to cut all the way through.
03 - In a bowl, combine the mozzarella cheese, spinach, sun-dried tomatoes, and minced garlic until evenly distributed.
04 - Gently press the filling into each cut of the chicken breasts, ensuring the slices open enough to hold the mixture.
05 - Place the stuffed breasts in a baking dish. Drizzle with olive oil and sprinkle evenly with Italian herbs, paprika, salt, and pepper.
06 - Bake for 25–30 minutes, until the chicken reaches an internal temperature of 165°F and the filling is golden and bubbly.
07 - Let the chicken rest for 5 minutes before serving to allow juices to redistribute.