Set oven temperature to 350°F (175°C).
Place one wonton wrapper into each cup of a muffin tin, pressing gently. Apply a light coating of cooking spray to each and bake for 5 minutes.
Combine all remaining ingredients in a medium bowl and stir until uniformly blended.
Distribute the spinach and artichoke mixture evenly among the wonton cups and return to the oven for about 10 minutes, or until the wontons turn golden brown and crisp.
Allow to cool briefly, then carefully take them out of the muffin tin. Serve warm.