Unroll 1 Can Of Dough (If Using Crescent Rolls, Press Perforations To Seal) Onto Ungreased Cookie Sheet. Spread 1 Tablespoon Of The Mustard To Within 1/2 Inch Of Edges. Top With Chicken, Ham And Cheese. Unroll Remaining Can Of Dough (If Using Crescent Rolls, Press Perforations To Seal); Spread With Remaining Mustard. Place Mustard Side Down On Cheese; Press Edges With Fork To Seal. Bake At 375 Degrees F 15 To 20 Minutes.