Preheat oven to 450°.
Place pizza crusts on a baking sheet. Bake for 5 minutes at 450° or until warm.
Spread chutney over bottom side of 1 pizza crust. Spread mustard on bottom side of remaining crust. Arrange sliced ham over mustard-coated crust. Top with arugula. Place chutney-coated side of remaining crust over arugula. Cut into four equal sandwiches.