Place a parchment paper-lined baking sheet in oven and preheat to 350°.
Combine all ingredients in a bowl.
Lay out each wonton wrapper on waxed paper.
Scoop a heaping teaspoon of crab mixture into the center of each wonton.
Moisten the wonton edges with water. Lift two opposite corners and pinch together. Repeat with other two corners to form a star.
Transfer the wontons to the hot baking sheet and generously spray with cooking spray.
Bake until golden brown, 16 to 18 minutes.