01 - Preheat oven to 390°F.
02 - Using a sharp knife, make deep cuts about 0.4 inches apart across each chicken breast, being careful not to cut all the way through.
03 - Combine mozzarella cheese, spinach, sun-dried tomatoes, and minced garlic in a mixing bowl.
04 - Gently stuff the filling into each cut of the chicken breasts.
05 - Place stuffed breasts in a baking dish. Drizzle with olive oil and sprinkle with Italian herbs, paprika, salt, and pepper.
06 - Bake for 25-30 minutes until chicken is cooked through and filling is golden and bubbly.
07 - Let rest for 5 minutes before serving.