Spilt rolls. Spread cut sides of roll with mustard. Layer and divide Swiss cheese, Canadian bacon, provolone cheese, ham and pickle slices among roll halves. Heat sandwich press. Brush top and bottom of sandwich lightly with butter; grill about 4 minutes or until bread is crispy and cheese begins to melt.
*You can also grill in nonstick skillet over medium-high heat 2 to 3 minutes per side, pressing down on bread with spatula while cooking.