Heat oven to 425°F. Grease cookie sheet. In medium bowl, combine all ingredients except pizza crust; mix well.
Unroll dough; place on greased cookie sheet. Starting at center, press out dough with hands to 14x8-inch rectangle. Cut into four 7x4-inch rectangles; separate slightly.
Spoon about 1/2 cup ham and cheese mixture onto half of each rectangle; fold dough over filling. Press edges with fork to seal; prick tops with fork.
Bake at 425°F. for 11 to 16 minutes or until golden brown.