01 - Set oven to 375°F (190°C). Line a baking dish with parchment paper or lightly grease it.
02 - In a skillet, warm 1 tablespoon olive oil over medium heat. Add minced garlic and chopped spinach, sautéing until spinach is wilted, about 2 minutes. Remove from heat.
03 - In a mixing bowl, combine sautéed spinach, softened cream cheese, crumbled feta cheese, and chopped dried cranberries. Add 1/4 teaspoon sea salt and 1/4 teaspoon ground black pepper. Mix well until evenly incorporated.
04 - With a sharp knife, create a pocket in the thickest part of each chicken breast, taking care not to slice all the way through.
05 - Spoon the cranberry-spinach filling evenly into each chicken breast pocket. Secure openings with toothpicks if needed.
06 - In a small bowl, blend paprika, dried thyme, 1/2 teaspoon salt, and 1/4 teaspoon black pepper. Brush the chicken breasts on all sides with 1 tablespoon olive oil, then sprinkle with the prepared seasoning.
07 - Transfer stuffed chicken breasts to the prepared baking dish. Bake for 25 to 30 minutes, or until an internal temperature of 165°F (74°C) is reached and juices run clear.
08 - Remove toothpicks and allow the chicken to rest for 5 minutes before serving.