In a small bowl, mix together the mashed sweet potatoes, curry powder, cumin, red pepper flakes, and ground coriander. In a separate bowl, mix contents of dips packet with yogurt. Fold the yogurt mixture into the potatoes; then gently stir in the feta cheese. Top with extra feta cheese, if desired.
For safe meat preparation, reference the USDA website.
For dips, make and enjoy your dip creation. Then, refrigerate within 2 hours or discard.