Slice ham into 8 pieces. Cook broccoli until almost tender, about 12 minutes. Set aside. Combine flour, salt, pepper and mustard in 2-quart Mix-N-Pour bowl. Slowly stir in half and half and milk. Add butter. Microwave on High for 5 to 6 minutes or until sauce boils and thickens, stirring 2 to 3 times. Stir in cheese. Drain liquid from broccoli; stir broccoli into cheese sauce. Spoon broccoli mixture into 9 x 13-inch pan. Roll ham slices and insert toothpicks to keep rolls in place. Arrange over broccoli mixture. Turn to coat with sauce. Cover with wax paper. Microwave on High 6 to 7 minutes or until ham is heated through. Rotate dish once or twice. Remove toothpicks before serving.