Move oven rack to lowest position. Heat oven to 425°. Spray 12-inch pizza pan with cooking spray. Stir Bisquick mix, oregano and water; beat vigorously with spoon 20 strokes until soft dough forms. Press dough in pizza pan, using fingers dipped in Bisquick mix; pinch edge to form 1/2-inch rim. Bake about 15 minutes or until golden brown.