01 - Preheat oven to 375°F (190°C). Line a baking dish with parchment paper or lightly grease with oil.
02 - Heat 1 tablespoon olive oil in a skillet over medium heat. Add minced garlic and chopped spinach; sauté until spinach is wilted, approximately 2 minutes. Remove skillet from heat.
03 - Combine sautéed spinach, cream cheese, feta cheese, and dried cranberries in a mixing bowl. Season with 1/4 teaspoon salt and 1/4 teaspoon black pepper. Mix until well incorporated.
04 - With a sharp knife, carefully cut a pocket along the thickest side of each chicken breast without cutting through entirely.
05 - Evenly spoon spinach-cranberry filling into each chicken breast pocket. Secure openings with toothpicks if necessary.
06 - In a small bowl, blend paprika, dried thyme, 1/2 teaspoon salt, and 1/4 teaspoon black pepper. Brush chicken breasts with 1 tablespoon olive oil, then coat evenly with seasoning mixture.
07 - Arrange stuffed chicken breasts in the prepared baking dish. Bake for 25 to 30 minutes, or until fully cooked and internal temperature reaches 165°F (74°C).
08 - Remove toothpicks and let chicken rest for 5 minutes before serving warm.