Line 24 muffin cups with muffin liners.
Scoop the batter into the muffin liners, filling them about ¾ full.
Place 2 teaspoons of the cream cheese mixture in the center of each muffin.
If desired, sprinkle pumpkin seeds on top.
Bake at 350°F for about 20 minutes, or until a toothpick inserted in the center comes out clean (oven temperatures vary, so check with a toothpick).