This sandwich is one of my favorite childhood foods. It seems to have just the right combination of flavors. These freeze very well--assemble everything and then wrap in plastic wrap and foil. When you're ready, unwrap and put it straight from the freezer into the oven and plan for about 10-15 minutes extra cooking time. This is a great way to use Easter leftovers!
Soften cream cheese for about 10 seconds in microwave. Spread over cut french bread halves. Layer ham on top of cream cheese.
Thaw frozen corn pouch in microwave or warm water. In a medium bowl, combine corn, green onions, mayonnaise, mustard, and cheese. Spread evenly over both halves.
Bake for about 20 minutes or until cheese is melted. If the edges get too brown, cover in aluminum foil. Let cool for a few minutes, slice, and serve.