Preheat oven to 350 degrees F. Mix crabmeat, Neufchatel cheese, onions and mayo.

Spray 12 medium muffin cups with cooking spray. Gently place 1 won ton wrapper in each cup, allowing edges of wrappers to extend above sides of cups. Fill evenly with crabmeat mixture.

Bake 18 to 20 min. or until edges are golden brown and filling is heated through. Serve warm. Garnish with chopped green onions, if desired.