Preheat oven to 350°F. Beat cream cheese and Girl Scouts S’mores™ Seasoning Blend with electric mixer until smooth. Gently stir in 3/4 cup each chocolate chips and marshmallows.
Spoon into 1-quart heatproof skillet or baking dish. Top with remaining chocolate chips and marshmallows. Bake 20 minutes or until heated through.