01 - Preheat oven to 375°F (190°C). Line a baking dish with parchment paper or lightly grease with cooking spray.
02 - In a skillet over medium heat, warm 1 tablespoon olive oil. Sauté minced garlic and chopped spinach for approximately 2 minutes until just wilted. Remove skillet from the heat.
03 - In a mixing bowl, blend sautéed spinach, softened cream cheese, crumbled feta cheese, and chopped cranberries. Season with 1/4 teaspoon each salt and black pepper, then stir until fully combined.
04 - Using a sharp knife, create a pocket in the thickest side of each chicken breast by slicing carefully without cutting all the way through.
05 - Divide and spoon the cranberry spinach mixture evenly into each chicken pocket. Use toothpicks to secure if necessary.
06 - Combine paprika, dried thyme, 1/2 teaspoon salt, and 1/4 teaspoon black pepper in a small bowl. Brush the stuffed chicken breasts with 1 tablespoon olive oil, then sprinkle the seasoning mixture evenly over all sides.
07 - Arrange the stuffed and seasoned chicken breasts in the prepared baking dish. Bake for 25 to 30 minutes, or until the chicken is thoroughly cooked and the internal temperature reaches 165°F (74°C). Juices should run clear.
08 - Remove toothpicks and let the cooked chicken rest for 5 minutes before serving.