01 - Preheat oven to 375°F (190°C). Line a baking dish with parchment paper or lightly grease the surface.
02 - In a skillet over medium heat, warm 1 tablespoon olive oil. Sauté minced garlic and chopped spinach for about 2 minutes or until wilted. Remove from heat.
03 - In a bowl, mix sautéed spinach, softened cream cheese, crumbled feta cheese, and chopped cranberries. Season with 1/4 teaspoon salt and 1/4 teaspoon ground black pepper. Stir until thoroughly combined.
04 - Using a sharp knife, carefully cut a deep pocket into the thickest side of each chicken breast, being careful not to slice through.
05 - Fill each chicken pocket with an equal portion of the spinach-cranberry mixture. Secure openings with toothpicks if necessary.
06 - In a small bowl, mix paprika, dried thyme, 1/2 teaspoon salt, and 1/4 teaspoon black pepper. Brush each filled chicken breast with 1 tablespoon olive oil, then sprinkle the seasoning mix over all surfaces.
07 - Place stuffed chicken breasts into the prepared baking dish. Transfer to the oven and bake for 25 to 30 minutes, until the chicken is fully cooked and the juices run clear. Internal temperature should reach 165°F (74°C).
08 - Remove toothpicks and let the stuffed chicken rest for 5 minutes before slicing or serving.