1Heat oven to 425°F. Spray 12-inch pizza pan or cookie sheet with cooking spray.
2In medium bowl, stir Bisquick mix, Parmesan cheese and hot water until soft dough forms. Press dough in pizza pan, using fingers dipped in Bisquick mix; pinch edge to form 1/2-inch rim. Bake 7 to 8 minutes or until light golden brown.
3Spread pasta sauce over partially baked crust. Top with chicken, ham, Swiss cheese and green onions.
4Bake 10 to 15 minutes longer or until crust is golden brown and cheese is melted.