Line baking sheet with parchment paper. Mash sweet potatoes with vanilla and ground cinnamon.
Unroll phyllo dough in a stack of 4 sheets. Cover with large sheet of waxed paper and damp kitchen towel. Remove 1 sheet and position it flat, with short width facing you. Spray edges lightly and evenly with cooking spray.
Spread 3 tablespoons sweet potato mixture along edge of phyllo. Sprinkle with 1 tablespoon chopped pecans. Quickly roll up. Slice into thirds and place on prepared baking sheet. Repeat with remaining phyllo sheets.
Spray tops of phyllo wraps with cooking spray. Bake 15 to 20 minutes or until golden brown. Remove from oven and drizzle with light maple syrup (about 1/4 teaspoon per wrap). Garnish with strawberries, if desired.