01 -
Combine softened cream cheese, shredded mozzarella, grated Parmesan, chopped spinach, and minced garlic in a bowl. Mix thoroughly until smooth and creamy. Set aside.
02 -
Pat chicken breasts dry. Using a sharp knife, cut a horizontal pocket about 3 to 4 inches long into the thickest part of each breast, without cutting through. Pound thicker breasts slightly for even cooking.
03 -
Mix garlic powder, onion powder, paprika, salt, and black pepper. Rub olive oil over chicken breasts, then season both sides including the inside of the pockets evenly with the spice mixture.
04 -
Divide the cheese and spinach filling evenly among the four pockets. Secure openings with toothpicks to prevent filling from leaking, taking care not to overfill.
05 -
Preheat oven to 375°F (190°C). Heat an oven-safe skillet over medium-high heat. Sear stuffed breasts for 3 to 4 minutes per side until golden brown. Transfer skillet to oven and bake for 20 to 25 minutes until internal temperature reaches 165°F (74°C).
06 -
Remove chicken from oven and rest for 5 minutes. Remove toothpicks, slice diagonally to reveal filling, and serve immediately.