01 - Preheat oven to 375°F. Line a baking dish with parchment paper or lightly grease.
02 - Heat 1 tablespoon olive oil in a skillet over medium heat. Sauté garlic and chopped spinach until wilted, about 2 minutes. Remove from heat.
03 - Combine sautéed spinach, softened cream cheese, crumbled feta, and chopped cranberries in a mixing bowl. Add 1/4 teaspoon salt and 1/4 teaspoon black pepper. Mix thoroughly until well blended.
04 - Using a sharp knife, cut a pocket into the thickest side of each chicken breast, being careful not to cut all the way through.
05 - Spoon filling evenly into the pockets of the chicken breasts. Secure the 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 chicken breasts with 1 tablespoon olive oil, then sprinkle seasoning mixture on all sides.
07 - Arrange stuffed chicken breasts in the prepared baking dish. Bake for 25 to 30 minutes, or until chicken is fully cooked and internal temperature reaches 165°F.
08 - Remove toothpicks from chicken breasts. Let rest for 5 minutes before serving.