Unroll crescent rolls and place three adjoining sections over jelly-roll pan or cookie sheet. Press perforations and seams together to form solid crust without holes. Bake in preheated oven for 10-12 minutes or until golden brown. Meanwhile, cream together cream cheese and dressing mix until smooth. Spread mixture evenly over baked and cooled crust.
Chop vegetables into very small pieces and sprinkle over creamy mixture.
Lightly pat vegetables onto creamy mixture. Top with grated American cheese. Chill or serve immediately. Cut into squares. Combine all ingredients and mix well.