Preheat oven to 350F. Place one won ton wrapper in each muffin tin, pressing down in the corners. Spray lightly with cooking spray then set aside.
Mix together the chicken, bell pepper, garlic, salsa, chilis and black olives. Heat over medium heat until heated through. Remove from heat.
Spoon a small spoonful of black beans into each prepared wonton cup. Fill with the heated chicken mixture. Sprinkle cheese over top of each one.
Bake for 20-25 minutes or until the mixture is heated through, the cheese is melting and the wontons have browned. Remove and cool until you can handle them. Remove from the muffin tin and top with any of the garnishes.
This makes a minimum of 12 but I had quite a bit of filling left over to make at least 6 more the next day!