01 - Preheat oven to 375°F (190°C). Line a baking dish with parchment paper or lightly grease.
02 - Heat 1 tablespoon olive oil in a skillet over medium heat. Sauté minced garlic and chopped spinach until wilted, about 2 minutes. Remove from heat.
03 - In a mixing bowl, combine sautéed spinach, cream cheese, crumbled feta cheese, and chopped cranberries. Season with 1/4 teaspoon salt and 1/4 teaspoon ground black pepper. Mix thoroughly until well incorporated.
04 - With a sharp knife, carefully cut a pocket into the thickest side of each chicken breast, being mindful not to slice all the way through.
05 - Divide the spinach and cranberry filling evenly among the chicken breast pockets and spoon inside. Secure openings with toothpicks if needed.
06 - In a small bowl, mix paprika, dried thyme, 1/2 teaspoon salt, and 1/4 teaspoon black pepper. Brush stuffed chicken breasts with 1 tablespoon olive oil then sprinkle with the seasoning blend on all sides.
07 - Place seasoned, stuffed chicken breasts in the prepared baking dish.
08 - Bake in the preheated oven for 25 to 30 minutes, or until the chicken is cooked through and juices run clear. Internal temperature should reach 165°F (74°C).
09 - Remove toothpicks and allow chicken to rest for 5 minutes before slicing and serving.