1Heat oven to 450°. Spray large cookie sheet with cooking spray. Stir Bisquick mix and water until soft dough forms. Divide dough into fourths. Pat each part of dough into 6-inch circle on cookie sheet, using fingers dusted with Bisquick mix; pinch edge to form 1/2-inch rim.
2Spread Alfredo sauce on dough. Top with chicken, mushrooms and chopped basil. Sprinkle with cheese.
3Bake 9 to 11 minutes or until crusts are golden brown and cheese is bubbly. Garnish with additional basil leaves.