1Heat oven to 400ºF. Spray 24 mini-muffin cups with cooking spray.
2Beat Bisquick, milk, sour cream, Worcestershire sauce and eggs with fork until blended; stir in remaining ingredients. Spoon about 1 tablespoon mixture into each muffin cup.
3Bake 15 to 20 minutes or until golden. Cool 5 minutes. Loosen sides of tarts from pan; remove from pan. Refrigerate any remaining appetizers.