01 -
Stir together the cumin, paprika, salt, and chili powder in a small bowl, then keep it to the side.
02 -
Finely chop the spinach, then toss it into a bowl. Add your cream cheese, mozzarella, and feta, and use your hands to mash and mix until it's smooth and combined.
03 -
Carefully make a small opening on the long side of each chicken breast with a sharp knife. Don’t slice all the way through.
04 -
Spoon the spinach mixture evenly into four portions and stuff it into the chicken openings. Use toothpicks to hold the edges together.
05 -
Brush each chicken breast on both sides with olive oil, then sprinkle the spice blend all over.
06 -
Place in a 400ºF oven and bake for 25 to 30 minutes, adjusting for the size of the chicken pieces.