Preheat oven to 350 degrees. Grease a large baking sheet.
Add the roasted sweet potatoes, butter, honey, vanilla, white sugar and spice in a large mixing bowl. Mix with an electric beater for 2 minutes or until thoroughly combined.
Unroll crescent dough onto a clean, flat surface. Cut into 1 1/2" squares. Scoop out a dollop (about 1 to 2 Tbsp) of the sweet potato mixture into the center of each square. Fold up the corners to the top to create a packet.
Place on the baking sheet and sprinkle with brown sugar. Bake for 22 minutes or until the tops are golden.