01 - Preheat oven to 375°F. Line a baking dish with parchment paper or lightly grease to prevent sticking.
02 - Heat 1 tablespoon olive oil in a skillet over medium heat. Sauté minced garlic and chopped spinach until spinach is wilted, about 2 minutes. Remove skillet from heat.
03 - In a mixing bowl, combine the sautéed spinach, cream cheese, crumbled feta cheese, and chopped cranberries. Season with 1/4 teaspoon salt and 1/4 teaspoon black pepper. Mix thoroughly until well blended.
04 - With a sharp knife, cut a pocket into the thickest side of each chicken breast, being careful not to slice all the way through.
05 - Spoon the spinach and cranberry filling evenly into the pockets of each chicken breast. Use toothpicks to secure the openings if necessary.
06 - In a small bowl, combine paprika, dried thyme, 1/2 teaspoon salt, and 1/4 teaspoon black pepper. Brush the chicken breasts with 1 tablespoon olive oil, then sprinkle the seasoning mix evenly over all sides.
07 - Arrange the stuffed chicken breasts in the prepared baking dish. Bake for 25 to 30 minutes, or until internal temperature reaches 165°F and juices run clear.
08 - Remove toothpicks and allow the chicken breasts to rest for 5 minutes before plating and serving.