In a large skillet, cook sausage over medium heat until no longer pink; drain. In a large bowl, combine the sausage, carrots, onion, peppers, cheeses, sour cream, garlic and lemon-pepper. Press wonton wrappers into miniature muffin cups coated with cooking spray. In a small bowl, combine butter and garlic powder; brush over edges. Bake at 350° for 8-9 minutes or until lightly browned. Spoon sausage mixture into cups. Bake 5-7 minutes longer or until heated through. Garnish with tomatoes if desired.